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Pharr, George Professor
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Publications
selected publications
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academic article
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Hackett, B. L., Sudharshan Phani, P., Walker, C. C., Oliver, W. C., & Pharr, G. M.
(2023).
Advances in the measurement of hardness at high strain rates by nanoindentation. Journal of Materials Research.
38(5), 1163-1177.
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Boatner, L. A., Finch, C. B., Brundage, W. E., Kolopus, J. A., Gruzalski, G. R., Johanns, K. E., ... Oliver, W. C.
(2023).
Synthesis and characterization of metal carbides for nanoindentation tip applications. Journal of Applied Physics.
133(9), 095107-095107.
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Phani, P. S., Hackett, B. L., Walker, C. C., Oliver, W. C., & Pharr, G. M.
(2023).
High strain rate nanoindentation testing: Recent advancements, challenges and opportunities. Current Opinion in Solid State and Materials Science.
27(1), 101054-101054.
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Phani, P. S., Hackett, B. L., Walker, C. C., Oliver, W. C., & Pharr, G. M.
(2023).
On the measurement of hardness at high strain rates by nanoindentation impact testing. Journal of the Mechanics and Physics of Solids.
170, 105105-105105.
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Patel, R., Zhang, Y., Lin, C., Guerrero, J., Deng, Y., Pharr, G. M., & Xie, K. Y.
(2022).
Microstructural and mechanical property characterization of Argillaceous, Kerogen-rich, and Bituminous shale rocks. Journal of Natural Gas Science and Engineering.
108, 104827-104827.
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Liang, Z. Y., & Pharr, G. M.
(2022).
Decoupling indentation size and strain rate effects during nanoindentation: A case study in tungsten. Journal of the Mechanics and Physics of Solids.
165, 104935-104935.
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Sahu, B. P., Higgins, W. H., Derby, B. K., Pharr, G. M., & Misra, A.
(2022).
Strain-rate dependent deformation mechanisms in single-layered Cu, Mo, and multilayer Cu/Mo thin films. Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing.
838, 142776-142776.
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Sharma, V., Shi, X., Yao, G., Pharr, G. M., & Wu, J. Y.
(2022).
Surface characterization of an ultra-soft contact lens material using an atomic force microscopy nanoindentation method. Scientific Reports.
12(1), 20013.
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Brazil, O., Pethica, J. B., & Pharr, G. M.
(2021).
The contribution of plastic sink-in to the static friction of single asperity microscopic contacts. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences.
477(2256), 20210502.
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Phani, P. S., Oliver, W. C., & Pharr, G. M.
(2021).
Influences of elasticity on the measurement of power law creep parameters by nanoindentation. Journal of the Mechanics and Physics of Solids.
154, 104527-104527.
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Ma, X., Higgins, W., Liang, Z., Zhao, D., Pharr, G. M., & Xie, K. Y.
(2021).
Exploring the origins of the indentation size effect at submicron scales. Proceedings of the National Academy of Sciences of USA.
118(30), e2025657118.
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Singleton, R. C., Pharr, G. M., & Nyman, J. S.
(2021).
Increased tissue-level storage modulus and hardness with age in male cortical bone and its association with decreased fracture toughness. BONE.
148, 115949-115949.
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Liang, Z. Y., Xiang, S. S., & Pharr, G. M.
(2021).
Effects of crystal orientation on the indentation creep of beta-tin. 36(12), 2434-2443.
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Phani, P. S., Oliver, W. C., & Pharr, G. M.
(2021).
Measurement of hardness and elastic modulus by load and depth sensing indentation: Improvements to the technique based on continuous stiffness measurement. 36(11), 2137-2153.
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Merle, B., Maier-Kiener, V., Rupert, T. J., & Pharr, G. M.
(2021).
Current trends in nanomechanical testing research. Journal of Materials Research.
36(11), 2133-2136.
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Li, J., Pharr, G. M., & Kirchlechner, C.
(2021).
Quantitative insights into the dislocation source behavior of twin boundaries suggest a new dislocation source mechanism. Journal of Materials Research.
36(10), 2037-2046.
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Phani, P. S., Oliver, W. C., & Pharr, G. M.
(2021).
On the effective load during nanoindentation creep testing with continuous stiffness measurement (CSM). Journal of Materials Research.
36(8), 1740-1750.
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Brazil, O., & Pharr, G. M.
(2021).
Direct observation of partial interface slip in micrometre-scale single asperity contacts. Tribology International.
155, 106776-106776.
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Valentino, G. M., Xiang, S., Ma, L., Xie, K. Y., He, M., Oliver, W. C., ... Hemker, K. J.
(2021).
Investigating the compressive strength and strain localization of nanotwinned nickel alloys. ACTA MATERIALIA.
204, 116507-116507.
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Barta, N. E., Fincher, C., Bolon, A. M., Attari, V., Higgins, W., Arroyave, R., ... Karaman, I.
(2021).
Fabrication and characterization of aluminum-magnetic shape memory alloy composites. Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing.
805, 140549-140549.
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Barta, N. E., Fincher, C., Bolon, A. M., Attari, V., Higgins, W., Arroyave, R., ... Karaman, I.
(2021).
Fabrication and characterization of aluminum - magnetic shape memory alloy composites. Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing.
805.
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Phani, P. S., Oliver, W. C., & Pharr, G. M.
(2020).
An experimental assessment of methods for mitigating plasticity error during nanoindentation with continuous stiffness measurement. 194, 108924-108924.
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Phani, P. S., Oliver, W. C., & Pharr, G. M.
(2020).
Understanding and modeling plasticity error during nanoindentation with continuous stiffness measurement. 194, 108923-108923.
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Singh, P. S., Liang, Z., Pharr, G. M., & de Boer, M. P.
(2020).
Creep of a thermally stable nanocrystalline nickel tungsten alloy as measured by high temperature nanoindentation. Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing.
784, 139309-139309.
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Fincher, C. D., Ojeda, D., Zhang, Y., Pharr, G. M., & Pharr, M.
(2020).
Mechanical properties of metallic lithium: from nano to bulk scales. ACTA MATERIALIA.
186, 215-222.
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Merle, B., Higgins, W. H., & Pharr, G. M.
(2020).
Extending the range of constant strain rate nanoindentation testing. 35(4), 343-352.
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Fincher, C. D., Zhang, Y., Pharr, G. M., & Pharr, M.
(2020).
Elastic and Plastic Characteristics of Sodium Metal. ACS Applied Energy Materials.
3(2), 1759-1767.
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Merle, B., Higgins, W. H., & Pharr, G. M.
(2019).
Critical issues in conducting constant strain rate nanoindentation tests at higher strain rates. Journal of Materials Research.
34(20), 3495-3503.
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Xiang, S., Ma, L., Yang, B., Dieudonne, Y., Pharr, G. M., Lu, J., ... Xie, K. Y.
(2019).
Tuning the deformation mechanisms of boron carbide via silicon doping. Science Advances.
5(10), eaay0352.
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Lee, J. H., Pharr, G. M., & Gao, Y.
(2019).
Corrections to the stiffness relationship in 3-sided and conical indentation problems. International Journal of Solids and Structures.
166, 154-166.
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Hackett, B. L., Wereszczak, A. A., & Pharr, G. M.
(2019).
Effect of aqueous-based mechanical polishing on the nanoindentation response of borosilicate glasses. 10(3), 302-306.
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Ginder, R. S., & Pharr, G. M.
(2019).
Characterization of power-law creep in the solid-acid CsHSO4 via nanoindentation. 34(7), 1130-1137.
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Mound, B. A., & Pharr, G. M.
(2019).
Nanoindentation of Fused Quartz at Loads Near the Cracking Threshold. 59(3), 369-380.
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Osetsky, Y. N., Pharr, G. M., & Morris, J. R.
(2019).
Two modes of screw dislocation glide in fcc single-phase concentrated alloys. ACTA MATERIALIA.
164, 741-748.
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Ginder, R. S., Nix, W. D., & Pharr, G. M.
(2018).
A simple model for indentation creep. Journal of the Mechanics and Physics of Solids.
112, 552-562.
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Lee, J. H., Gao, Y., Bower, A. F., Xu, H., & Pharr, G. M.
(2018).
Stiffness of frictional contact of dissimilar elastic solids. Journal of the Mechanics and Physics of Solids.
112, 318-333.
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Lewis, B. B., Mound, B. A., Srijanto, B., Fowlkes, J. D., Pharr, G. M., & Rack, P. D.
(2017).
Growth and nanomechanical characterization of nanoscale 3D architectures grown via focused electron beam induced deposition. Nanoscale.
9(42), 16349-16356.
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Ginder, R. S., & Pharr, G. M.
(2017).
Creep behavior of the solid acid fuel cell material CsHSO4. Scripta Materialia.
139, 119-121.
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Thom, C. A., Brodsky, E. E., Carpick, R. W., Pharr, G. M., Oliver, W. C., & Goldsby, D. L.
(2017).
Nanoscale Roughness of Natural Fault Surfaces Controlled by Scale-Dependent Yield Strength. Geophysical Research Letters.
44(18), 9299-9307.
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Ghidelli, M., Sebastiani, M., Johanns, K. E., & Pharr, G. M.
(2017).
Effects of indenter angle on micro-scale fracture toughness measurement by pillar splitting. Journal of the American Ceramic Society.
100(12), 5731-5738.
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Merle, B., Maier-Kiener, V., & Pharr, G. M.
(2017).
Influence of modulus-to-hardness ratio and harmonic parameters on continuous stiffness measurement during nanoindentation. ACTA MATERIALIA.
134, 167-176.
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Phani, P. S., Oliver, W. C., & Pharr, G. M.
(2017).
On the Measurement of Power Law Creep Parameters from Instrumented Indentation. Journal of Metals.
69(11), 2229-2236.
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Miao, J., Slone, C. E., Smith, T. M., Niu, C., Bei, H., Ghazisaeidi, M., Pharr, G. M., & Mills, M. J.
(2017).
The evolution of the deformation substructure in a Ni-Co-Cr equiatomic solid solution alloy. ACTA MATERIALIA.
132, 35-48.
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Bruns, S., Johanns, K. E., Rehman, H., Pharr, G. M., & Durst, K.
(2017).
Constitutive modeling of indentation cracking in fused silica. 100(5), 1928-1940.
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Datye, A., Li, L., Zhang, W., Wei, Y., Gao, Y., & Pharr, G. M.
(2016).
Extraction of Anisotropic Mechanical Properties From Nanoindentation of SiC-6H Single Crystals. 83(9), 091003.
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Nyman, J. S., Granke, M., Singleton, R. C., & Pharr, G. M.
(2016).
Tissue-Level Mechanical Properties of Bone Contributing to Fracture Risk. Current Osteoporosis Reports.
14(4), 138-150.
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Xia, Y., Gao, Y., Pharr, G. M., & Bei, H.
(2016).
Single versus successive pop-in modes in nanoindentation tests of single crystals. 31(14), 2065-2075.
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Sebastiani, M., Johanns, K. E., Herbert, E. G., & Pharr, G. M.
(2015).
Measurement of fracture toughness by nanoindentation methods: Recent advances and future challenges. Current Opinion in Solid State and Materials Science.
19(6), 324-333.
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Pharr, G. M.
(2015).
Recent advances in small-scale mechanical property measurement by nanoindentation. Current Opinion in Solid State and Materials Science.
19(6), 315-316.
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Marshall, D. B., Cook, R. F., Padture, N. P., Oyen, M. L., Pajares, A., Bradby, J. E., ... Lawn, B. R.
(2015).
The Compelling Case for Indentation as a Functional Exploratory and Characterization Tool. 98(9), 2671-2680.
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Sebastiani, M., Johanns, K. E., Herbert, E. G., Carassiti, F., & Pharr, G. M.
(2015).
A novel pillar indentation splitting test for measuring fracture toughness of thin ceramic coatings. 95(16-18), 1928-1944.
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Gao, Y. F., Larson, B. C., Lee, J. H., Nicola, L., Tischler, J. Z., & Pharr, G. M.
(2015).
Lattice Rotation Patterns and Strain Gradient Effects in Face-Centered-Cubic Single Crystals Under Spherical Indentation. Journal of Applied Mechanics.
82(6), 061007.
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Kwon, J., Bowers, M. L., Brandes, M. C., McCreary, V., Robertson, I. M., Phani, P. S., ... Mills, M. J.
(2015).
Characterization of dislocation structures and deformation mechanisms in as-grown and deformed directionally solidified NiAlMo composites. ACTA MATERIALIA.
89, 315-326.
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Wu, Z., Bei, H., Pharr, G. M., & George, E. P.
(2014).
Temperature dependence of the mechanical properties of equiatomic solid solution alloys with face-centered cubic crystal structures. ACTA MATERIALIA.
81, 428-441.
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Sebastiani, M., Korsunsky, A. M., Eberl, C., Bemporad, E., & Pharr, G. M.
(2014).
Discussion on Interfacial Residual Stress Analysis of Thermal Spray Coatings by Miniature Ring-Core Cutting Combined with DIC Method by J.G. Zhu et al., Experimental Mechanics DOI:10.1007/s11340-012-9640-2. 54(7), 1305-1306.
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Wu, Z., Bei, H., Otto, F., Pharr, G. M., & George, E. P.
(2014).
Recovery, recrystallization, grain growth and phase stability of a family of FCC-structured multi-component equiatomic solid solution alloys. Intermetallics.
46, 131-140.
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Johanns, K. E., Lee, J. H., Gao, Y. F., & Pharr, G. M.
(2014).
An evaluation of the advantages and limitations in simulating indentation cracking with cohesive zone finite elements. MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING.
22(1), 015011-015011.
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Kwon, J., Brandes, M. C., Phani, P. S., Pilchak, A. P., Gao, Y. F., George, E. P., Pharr, G. M., & Mills, M. J.
(2013).
Characterization of deformation anisotropies in an -Ti alloy by nanoindentation and electron microscopy. ACTA MATERIALIA.
61(13), 4743-4756.
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Shingledecker, J. P., Evans, N. D., & Pharr, G. M.
(2013).
Influences of composition and grain size on creeprupture behavior of Inconel alloy 740. Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing.
578, 277-286.
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Catoor, D., Gao, Y. F., Geng, J., Prasad, M., Herbert, E. G., Kumar, K. S., Pharr, G. M., & George, E. P.
(2013).
Incipient plasticity and deformation mechanisms in single-crystal Mg during spherical nanoindentation. ACTA MATERIALIA.
61(8), 2953-2965.
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Phani, P. S., Johanns, K. E., George, E. P., & Pharr, G. M.
(2013).
A simple stochastic model for yielding in specimens with limited number of dislocations. ACTA MATERIALIA.
61(7), 2489-2499.
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Su, C., Herbert, E. G., Sohn, S., LaManna, J. A., Oliver, W. C., & Pharr, G. M.
(2013).
Measurement of power-law creep parameters by instrumented indentation methods. Journal of the Mechanics and Physics of Solids.
61(2), 517-536.
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Shingledecker, J. P., & Pharr, G. M.
(2013).
Testing and Analysis of Full-Scale Creep-Rupture Experiments on Inconel Alloy 740 Cold-Formed Tubing. 22(2), 454-462.
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Lee, J. H., Gao, Y. F., Johanns, K. E., & Pharr, G. M.
(2012).
Cohesive interface simulations of indentation cracking as a fracture toughness measurement method for brittle materials. ACTA MATERIALIA.
60(15), 5448-5467.
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Dehm, G., Pharr, G. M., & Michler, J.
(2012).
Nanomechanical testing in materials research and development III. Philosophical Magazine.
92(25-27), 3125-3127.
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Jang, J., Bei, H., Becher, P. F., & Pharr, G. M.
(2012).
Experimental Analysis of the ElasticPlastic Transition During Nanoindentation of Single Crystal AlphaSilicon Nitride. 95(7), 2113-2115.
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Shingledecker, J. P., & Pharr, G. M.
(2012).
The Role of Eta Phase Formation on the Creep Strength and Ductility of INCONEL Alloy 740 at 1023 K (750 C). 43(6), 1902-1910.
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Johanns, K. E., Sedlmayr, A., Phani, P. S., Mnig, R., Kraft, O., George, E. P., & Pharr, G. M.
(2012).
In-situ tensile testing of single-crystal molybdenum-alloy fibers with various dislocation densities in a scanning electron microscope. 27(3), 508-520.
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Lee, J. H., Gao, Y. F., & Pharr, G. M.
(2012).
Effective Poissons ratio from combined normal and lateral contacts of single crystals. 27(1), 182-191.
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Sebastiani, M., Eberl, C., Bemporad, E., & Pharr, G. M.
(2011).
Depth-resolved residual stress analysis of thin coatings by a new FIBDIC method. Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing.
528(27), 7901-7908.
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Herbert, E. G., Tenhaeff, W. E., Dudney, N. J., & Pharr, G. M.
(2011).
Mechanical characterization of LiPON films using nanoindentation. THIN SOLID FILMS.
520(1), 413-418.
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Wang, Z., Bei, H., George, E. P., & Pharr, G. M.
(2011).
Influences of surface preparation on nanoindentation pop-in in single-crystal Mo. Scripta Materialia.
65(6), 469-472.
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Nyman, J. S., Lynch, C. C., Perrien, D. S., Thiolloy, S., O'Quinn, E. C., Patil, C. A., ... Mundy, G. R.
(2011).
Differential effects between the loss of MMP-2 and MMP-9 on structural and tissue-level properties of bone. Journal of Bone and Mineral Research.
26(6), 1252-1260.
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Morris, J. R., Bei, H., Pharr, G. M., & George, E. P.
(2011).
Size effects and stochastic behavior of nanoindentation pop in. Physical Review Letters.
106(16), 165502.
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Phani, P. S., Johanns, K. E., Duscher, G., Gali, A., George, E. P., & Pharr, G. M.
(2011).
Scanning transmission electron microscope observations of defects in as-grown and pre-strained Mo alloy fibers. ACTA MATERIALIA.
59(5), 2172-2179.
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Begau, C., Hartmaier, A., George, E. P., & Pharr, G. M.
(2011).
Atomistic processes of dislocation generation and plastic deformation during nanoindentation. ACTA MATERIALIA.
59(3), 934-942.
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Bi, X., Patil, C. A., Lynch, C. C., Pharr, G. M., Mahadevan-Jansen, A., & Nyman, J. S.
(2011).
Raman and mechanical properties correlate at whole bone- and tissue-levels in a genetic mouse model. Journal of Biomechanics.
44(2), 297-303.
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Oliver, W. C., & Pharr, G. M.
(2010).
Nanoindentation in materials research: Past, present, and future. Materials Research Society (MRS) Bulletin.
35(11), 897-907.
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Su, C., LaManna, J. A., Gao, Y., Oliver, W. C., & Pharr, G. M.
(2010).
Plastic instability in amorphous selenium near its glass transition temperature. Journal of Materials Research.
25(6), 1015-1019.
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Pharr, G. M., Herbert, E. G., & Gao, Y.
(2010).
The Indentation Size Effect: A Critical Examination of Experimental Observations and Mechanistic Interpretations. 40(1), 271-292.
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Xing, C., Wang, S., & Pharr, G. M.
(2009).
Nanoindentation of juvenile and mature loblolly pine (Pinus taeda L.) wood fibers as affected by thermomechanical refining pressure. Wood Science and Technology: journal of the international academy of wood science.
43(7-8), 615-625.
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Herbert, E. G., Oliver, W. C., de Boer, M. P., & Pharr, G. M.
(2009).
Measuring the elastic modulus and residual stress of freestanding thin films using nanoindentation techniques. Journal of Materials Research.
24(9), 2974-2985.
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Li, T. L., Lee, J. H., Gao, Y. F., Pharr, G. M., Huang, M., & Tsui, T. Y.
(2009).
Geometric effects on dislocation nucleation in strained electronics. Applied Physics Letters.
94(17), 171905-171905.
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Pharr, G. M., Strader, J. H., & Oliver, W. C.
(2009).
Critical issues in making small-depth mechanical property measurements by nanoindentation with continuous stiffness measurement. Journal of Materials Research.
24(3), 653-666.
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Pharr, G. M., Cheng, Y., Hutchings, I. M., Sakai, M., Moody, N. R., Sundararajan, G., & Swain, M. V.
(2009).
Introduction. Journal of Materials Research.
24(3), 579-580.
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Herbert, E. G., Oliver, W. C., Lumsdaine, A., & Pharr, G. M.
(2009).
Measuring the constitutive behavior of viscoelastic solids in the time and frequency domain using flat punch nanoindentation. Journal of Materials Research.
24(3), 626-637.
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Shim, S., Bei, H., Miller, M. K., Pharr, G. M., & George, E. P.
(2009).
Effects of focused ion beam milling on the compressive behavior of directionally solidified micropillars and the nanoindentation response of an electropolished surface. ACTA MATERIALIA.
57(2), 503-510.
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Shim, S., Bei, H., George, E. P., & Pharr, G. M.
(2008).
A different type of indentation size effect. Scripta Materialia.
59(10), 1095-1098.
-
Bei, H., Shim, S., Pharr, G. M., & George, E. P.
(2008).
Effects of pre-strain on the compressive stressstrain response of Mo-alloy single-crystal micropillars. ACTA MATERIALIA.
56(17), 4762-4770.
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Shim, S., Jang, J., & Pharr, G. M.
(2008).
Extraction of flow properties of single-crystal silicon carbide by nanoindentation and finite-element simulation. ACTA MATERIALIA.
56(15), 3824-3832.
-
Jang, J., & Pharr, G. M.
(2008).
Influence of indenter angle on cracking in Si and Ge during nanoindentation. ACTA MATERIALIA.
56(16), 4458-4469.
-
Bei, H., George, E. P., & Pharr, G. M.
(2008).
Small-scale mechanical behavior of intermetallics and their composites. Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing.
483(1-2 C), 218-222.
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Gao, Y. F., Xu, H. T., Oliver, W. C., & Pharr, G. M.
(2008).
A Comparison of Coulomb Friction and Friction Stress Models Based on Multidimensional Nanocontact Experiments. Journal of Applied Mechanics.
75(3), 034504-0345043.
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Durst, K., Gken, M., & Pharr, G. M.
(2008).
Indentation size effect in spherical and pyramidal indentations. Journal of Physics D: Applied Physics.
41(7), 074005-074005.
-
Herbert, E. G., Oliver, W. C., & Pharr, G. M.
(2008).
Nanoindentation and the dynamic characterization of viscoelastic solids. Journal of Physics D: Applied Physics.
41(7), 074021-074021.
-
Xing, C., Wang, S., Pharr, G. M., & Groom, L. H.
(2008).
Effect of thermo-mechanical refining pressure on the properties of wood fibers as measured by nanoindentation and atomic force microscopy. 62(2), 230-236.
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Gao, Y. F., Xu, H. T., Oliver, W. C., & Pharr, G. M.
(2008).
Effective elastic modulus of film-on-substrate systems under normal and tangential contact. Journal of the Mechanics and Physics of Solids.
56(2), 402-416.
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Bei, H., Gao, Y. F., Shim, S., George, E. P., & Pharr, G. M.
(2008).
Strength differences arising from homogeneous versus heterogeneous dislocation nucleation. Physical Review B.
77(6), 060103.
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Qin, J., Huang, Y., Hwang, K. C., Song, J., & Pharr, G. M.
(2007).
The effect of indenter angle on the microindentation hardness. ACTA MATERIALIA.
55(18), 6127-6132.
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Deng, Y. P., Guan, Y. F., Fowlkes, J. D., Wen, S. Q., Liu, F. X., Pharr, G. M., ... Rack, P. D.
(2007).
A combinatorial thin film sputtering approach for synthesizing and characterizing ternary ZrCuAl metallic glasses. Intermetallics.
15(9), 1208-1216.
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Bei, H., Shim, S., George, E. P., Miller, M. K., Herbert, E. G., & Pharr, G. M.
(2007).
Compressive strengths of molybdenum alloy micro-pillars prepared using a new technique. Scripta Materialia.
57(5), 397-400.
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Bei, H., Shim, S., Miller, M. K., Pharr, G. M., & George, E. P.
(2007).
Effects of focused ion beam milling on the nanomechanical behavior of a molybdenum-alloy single crystal. Applied Physics Letters.
91(11), 111915-111915.
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Gao, Y. F., & Pharr, G. M.
(2007).
Multidimensional contact moduli of elastically anisotropic solids. Scripta Materialia.
57(1), 13-16.
-
Lee, S., Wang, S., Pharr, G. M., & Xu, H.
(2007).
Evaluation of interphase properties in a cellulose fiber-reinforced polypropylene composite by nanoindentation and finite element analysis. Composites Part A: Applied Science and Manufacturing.
38(6), 1517-1524.
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Lee, S., Wang, S., Pharr, G. M., Kant, M., & Penumadu, D.
(2007).
Mechanical properties and creep behavior of lyocell fibers by nanoindentation and nano-tensile testing. Holzforschung: international journal of the biology, chemistry, physics and technology of wood.
61(3), 254-260.
-
Lee, S., Teramoto, Y., Wang, S., Pharr, G. M., & Rials, T. G.
(2007).
Nanoindentation of biodegradable cellulose diacetategraftpoly(Llactide) copolymers: Effect of molecular composition and thermal aging on mechanical properties. Journal of Polymer Science Part B: Polymer Physics.
45(9), 1114-1121.
-
Tze, W., Wang, S., Rials, T. G., Pharr, G. M., & Kelley, S. S.
(2007).
Nanoindentation of wood cell walls: Continuous stiffness and hardness measurements. Composites Part A: Applied Science and Manufacturing.
38(3), 945-953.
-
Shim, S., Shim, S., Oliver, W. C., Pharr, G. M., & Pharr, G. M.
(2007).
A comparison of 3D finite element simulations for Berkovich and conical indentation of fused silica. International Journal of Surface Science and Engineering.
1(2-3), 259-273.
-
Jennett, N. M., Pharr, G. M., & McHargue, C. J.
(2006).
Instrumented indentation testing in materials research and development. Philosophical Magazine.
86(33-35), 5153-5154.
-
Gao, Y. F., Lucas, B. N., Hay, J. C., Oliver, W. C., & Pharr, G. M.
(2006).
Nanoscale incipient asperity sliding and interface micro-slip assessed by the measurement of tangential contact stiffness. Scripta Materialia.
55(7), 653-656.
-
Huang, Y., Zhang, F., Hwang, K. C., Nix, W. D., Pharr, G. M., & Feng, G.
(2006).
A model of size effects in nano-indentation. Journal of the Mechanics and Physics of Solids.
54(8), 1668-1686.
-
Xu, H., & Pharr, G. M.
(2006).
An improved relation for the effective elastic compliance of a film/substrate system during indentation by a flat cylindrical punch. Scripta Materialia.
55(4), 315-318.
-
Qu, S., Huang, Y., Pharr, G. M., & Hwang, K. C.
(2006).
The indentation size effect in the spherical indentation of iridium: A study via the conventional theory of mechanism-based strain gradient plasticity. International Journal of Plasticity.
22(7), 1265-1286.
-
Schwarzer, N., Chudoba, T., & Pharr, G. M.
(2006).
On the evaluation of stresses in coated materials during nanoindentation with sharp indenters. Surface and Coatings Technology.
200(14-15), 4220-4226.
-
Rar, A., Pharr, G. M., Oliver, W. C., Karapetian, E., & Kalinin, S. V.
(2006).
Piezoelectric nanoindentation. Journal of Materials Research.
21(3), 552-556.
-
Lee, D., Santella, M. L., Anderson, I. M., & Pharr, G. M.
(2006).
Long-term oxidation of an As-Cast Ni3Al alloy at 900 C and 1100 C. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science.
37(2), 505-514.
-
Specht, E. D., Rack, P. D., Rar, A., Pharr, G. M., George, E. P., Fowlkes, J. D., Hong, H., & Karapetrova, E.
(2005).
Metastable phase evolution and grain growth in annealed nanocrystalline CrFeNi films. THIN SOLID FILMS.
493(1-2), 307-312.
-
Lee, H., Lee, J. H., & Pharr, G. M.
(2005).
A numerical approach to spherical indentation techniques for material property evaluation. Journal of the Mechanics and Physics of Solids.
53(9), 2037-2069.
-
Bei, H., George, E. P., Hay, J. L., & Pharr, G. M.
(2005).
Influence of indenter tip geometry on elastic deformation during nanoindentation. Physical Review Letters.
95(4), 045501.
-
Bei, H., George, E. P., Brown, D. W., Pharr, G. M., Choo, H., Porter, W. D., & Bourke, M.
(2005).
Thermal-expansion behavior of a directionally solidified NiAlMo composite investigated by neutron diffraction and dilatometry. Journal of Applied Physics.
97(12), 123503-123503.
-
Jang, J., Lance, M. J., Wen, S., Tsui, T. Y., & Pharr, G. M.
(2005).
Indentation-induced phase transformations in silicon: influences of load, rate and indenter angle on the transformation behavior. ACTA MATERIALIA.
53(6), 1759-1770.
-
Jang, J., Lance, M. J., Wen, S., & Pharr, G. M.
(2005).
Evidence for nanoindentation-induced phase transformations in germanium. Applied Physics Letters.
86(13), 131907-131907.
-
Lee, D., Santella, M. L., Anderson, I. M., & Pharr, G. M.
(2005).
Thermal aging effects on the microstructure and short-term oxidation behavior of a cast Ni3Al alloy. Intermetallics.
13(2), 187-196.
-
Rar, A., Frafjord, J. J., Fowlkes, J. D., Specht, E. D., Rack, P. D., Santella, M. L., ... Pharr, G. M.
(2005).
PVD synthesis and high-throughput property characterization of NiFeCr alloy libraries. Measurement Science and Technology.
16(1), 46-53.
-
Schwarzer, N., & Pharr, G. M.
(2004).
On the evaluation of stresses during nanoindentation with sharp indenters. THIN SOLID FILMS.
469(SPEC. ISS.), 194-200.
-
Bei, H., George, E. P., & Pharr, G. M.
(2004).
Elastic constants of single crystal Cr3Si and CrCr3Si lamellar eutectic composites: a comparison of ultrasonic and nanoindentation measurements. Scripta Materialia.
51(9), 875-879.
-
Taljat, B., & Pharr, G. M.
(2004).
Development of pile-up during spherical indentation of elasticplastic solids. International Journal of Solids and Structures.
41(14), 3891-3904.
-
Bei, H., Pharr, G. M., & George, E. P.
(2004).
A review of directionally solidified intermetallic composites for high-temperature structural applications. Journal of Materials Science.
39(12), 3975-3984.
-
Bei, H., George, E. P., Kenik, E. A., & Pharr, G. M.
(2004).
Microstructures and mechanical properties of VV 3 Si eutectic composites. 95(6), 505-512.
-
Yang, W., Larson, B. C., Pharr, G. M., Ice, G. E., Budai, J. D., Tischler, J. Z., & Liu, W.
(2004).
Deformation microstructure under microindents in single-crystal Cu using three-dimensional x-ray structural microscopy. Journal of Materials Research.
19(1), 66-72.
-
Cheng, Y. T., Page, T., Pharr, G. M., Swain, M. V., & Wahl, K. J.
(2004).
Fundamentals and applications of instrumented indentation in multidisciplinary research. Journal of Materials Research.
19(1), 1-2.
-
Oliver, W. C., & Pharr, G. M.
(2004).
Measurement of hardness and elastic modulus by instrumented indentation: Advances in understanding and refinements to methodology. Journal of Materials Research.
19(1), 3-20.
-
Goldsby, D. L., Rar, A., Pharr, G. M., & Tullis, T. E.
(2004).
Nanoindentation creep of quartz, with implications for rate- and state-variable friction laws relevant to earthquake mechanics. Journal of Materials Research.
19(1), 357-365.
-
Bei, H., George, E. P., Kenik, E. A., & Pharr, G. M.
(2003).
Directional solidification and microstructures of near-eutectic CrCr3Si alloys. ACTA MATERIALIA.
51(20), 6241-6252.
-
Brady, M. P., Anderson, I. M., Weaver, M. L., Meyer, H. M., Walker, L. R., Miller, M. K., ... Walls, C. A.
(2003).
Nitrogen impurity gettering in oxide dispersion ductilized chromium. Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing.
358(1-2), 243-254.
-
Specht, E. D., Rar, A., Pharr, G. M., George, E. P., Zschack, P., Hong, H., & Ilavsky, J.
(2003).
Rapid structural and chemical characterization of ternary phase diagrams using synchrotron radiation. Journal of Materials Research.
18(10), 2522-2527.
-
Penumadu, D., Dutta, A., Pharr, G. M., & Files, B.
(2003).
Mechanical properties of blended single-wall carbon nanotube composites. Journal of Materials Research.
18(8), 1849-1853.
-
Tsui, T. Y., Ross, C. A., & Pharr, G. M.
(2003).
A method for making substrate-independent hardness measurements of soft metallic films on hard substrates by nanoindentation. Journal of Materials Research.
18(6), 1383-1391.
-
Bei, H., George, E. P., & Pharr, G. M.
(2003).
Effects of composition on lamellar microstructures of near-eutectic CrCr3Si alloys. Intermetallics.
11(4), 283-289.
-
Pharr, G. M., & Bolshakov, A.
(2002).
Understanding nanoindentation unloading curves. Journal of Materials Research.
17(10), 2660-2671.
-
Durst, K., Gken, M., & Pharr, G. M.
(2002).
Finite element simulation of spherical indentation in the elasticplastic transition. 93(9), 857-861.
-
Fan, Z., Swadener, J. G., Rho, J. Y., Roy, M. E., & Pharr, G. M.
(2002).
Anisotropic properties of human tibial cortical bone as measured by nanoindentation. Journal of Orthopaedic Research.
20(4), 806-810.
-
Swadener, J. G., George, E. P., & Pharr, G. M.
(2002).
The correlation of the indentation size effect measured with indenters of various shapes. Journal of the Mechanics and Physics of Solids.
50(4), 681-694.
-
Rho, J. Y., Zioupos, P., Currey, J. D., & Pharr, G. M.
(2002).
Microstructural elasticity and regional heterogeneity in human femoral bone of various ages examined by nano-indentation. Journal of Biomechanics.
35(2), 189-198.
-
Swadener, J. G., George, E. P., & Pharr, G. M.
(2002).
The correlation of indentation size effect experiments with pyramidal and spherical indenters. MRS Online Proceedings Library.
695, 451-456.
-
Rho, J. Y., Mishra, S. R., Chung, K., Bai, J., & Pharr, G. M.
(2001).
Relationship between ultrastructure and the nanoindentation properties of intramuscular herring bones. Annals of Biomedical Engineering.
29(12), 1082-1088.
-
Herbert, E. G., Pharr, G. M., Oliver, W. C., Lucas, B. N., & Hay, J. L.
(2001).
On the measurement of stressstrain curves by spherical indentation. THIN SOLID FILMS.
398(399), 331-335.
-
Swadener, J. G., Rho, J. Y., & Pharr, G. M.
(2001).
Effects of anisotropy on elastic moduli measured by nanoindentation in human tibial cortical bone. 57(1), 108-112.
-
Roy, M. E., Nishimoto, S. K., Rho, J. Y., Bhattacharya, S. K., & Pharr, G. M.
(2001).
The distribution of osteocalcin, degree of mineralization, and mechanical properties along the length of Cyprinus carpio rib bone. Journal of Materials Science: Materials in Medicine.
12(8), 699-702.
-
Barabash, R., Ice, G. E., Larson, B. C., Pharr, G. M., Chung, K., & Yang, W.
(2001).
White microbeam diffraction from distorted crystals. Applied Physics Letters.
79(6), 749-751.
-
Swadener, J. G., Taljat, B., & Pharr, G. M.
(2001).
Measurement of residual stress by load and depth sensing indentation with spherical indenters. Journal of Materials Research.
16(7), 2091-2102.
-
Rho, J. Y., Currey, J. D., Zioupos, P., & Pharr, G. M.
(2001).
The anisotropic Young's modulus of equine secondary osteones and interstitial bone determined by nanoindentation. The Journal of Experimental Biology.
204(Pt 10), 1775-1781.
-
Davidson, D. L., & Pharr, G. M.
(2001).
Matrix Properties of Textile Reinforced Ceramic Matrix Composites Measured by Nanoindentation. Journal of Composites Technology and Research.
23(2), 102-110.
-
Roy, M. E., Nishimoto, S. K., Rho, J. Y., Bhattacharya, S. K., Lin, J. S., & Pharr, G. M.
(2001).
Correlations between osteocalcin content, degree of mineralization, and mechanical properties of C. carpio rib bone. 54(4), 547-553.
-
Swadener, J. G., & Pharr, G. M.
(2001).
Indentation of elastically anisotropic half-spaces by cones and parabolae of revolution. Philosophical Magazine.
81(2), 447-466.
-
Herbert, E. G., Pharr, G. M., Oliver, W. C., Lucas, B. N., & Hay, J. L.
(2001).
On the measurement of stress-strain curves by spherical indentation. MRS Online Proceedings Library.
649, Q3.4.1-Q3.4.6.
-
Anderson, P. M., Glaser, E. N., Veress, A. I., Pharr, G. M., Vince, D. G., Cornhill, J. F., & Herderick, E. E.
(2001).
Using indentation and intra-vascular ultrasound to measure arterial response. MRS Online Proceedings Library.
662, MM2.4.1-MM2.4.6.
-
Swadener, J. G., & Pharr, G. M.
(2000).
A methodology for the calibration of spherical indenters. MRS Online Proceedings Library.
594, 525-530.
-
Taljat, B., & Pharr, G. M.
(2000).
Measurement of residual stresses by load and depth sensing spherical indentation. MRS Online Proceedings Library.
594, 519-524.
-
Rho, J. Y., Roy, M., & Pharr, G. M.
(2000).
Comments on 'Elastic modulus and hardness of cortical and trabecular bone lamellae measured by nanoindentation in the human femur'. Journal of Biomechanics.
33(10), 1335-1337.
-
Rho, J. Y., Zioupos, P., Currey, J. D., & Pharr, G. M.
(2000).
Letter to the editor: Response. BONE.
26(5), 545-546.
-
Hofmann, G., Wiedenmeier, M., Freund, M., Beavan, A. l., Hay, J., & Pharr, G. M.
(2000).
An investigation of the relationship between position within coater and pyrolytic carbon characteristics using nanoindentation. Carbon.
38(5), 645-653.
-
Rho, J. Y., Zioupos, P., Currey, J. D., & Pharr, G. M.
(1999).
Variations in the individual thick lamellar properties within osteons by nanoindentation. BONE.
25(3), 295-300.
-
Rho, J. Y., & Pharr, G. M.
(1999).
Effects of drying on the mechanical properties of bovine femur measured by nanoindentation. Journal of Materials Science: Materials in Medicine.
10(8), 485-488.
-
Hay, J. C., Bolshakov, A., & Pharr, G. M.
(1999).
A critical examination of the fundamental relations used in the analysis of nanoindentation data. Journal of Materials Research.
14(6), 2296-2305.
-
Rho, J. Y., Roy, M. E., Tsui, T. Y., & Pharr, G. M.
(1999).
Elastic properties of microstructural components of human bone tissue as measured by nanoindentation. 45(1), 48-54.
-
Turner, C. H., Rho, J., Takano, Y., Tsui, T. Y., & Pharr, G. M.
(1999).
The elastic properties of trabecular and cortical bone tissues are similar: results from two microscopic measurement techniques. Journal of Biomechanics.
32(4), 437-441.
-
Roy, M. E., Rho, J. Y., Tsui, T. Y., Evans, N. D., & Pharr, G. M.
(1999).
Mechanical and morphological variation of the human lumbar vertebral cortical and trabecular bone. 44(2), 191-197.
-
Tsui, T. Y., & Pharr, G. M.
(1999).
Substrate effects on nanoindentation mechanical property measurement of soft films on hard substrates. Journal of Materials Research.
14(1), 292-301.
-
Hay, J. C., Sun, E. Y., Pharr, G. M., Becher, P. F., & Alexander, K. B.
(1998).
Elastic Anisotropy of Silicon Nitride Whiskers. 81(10), 2661-2669.
-
Pharr, G. M.
(1998).
Measurement of mechanical properties by ultra-low load indentation. Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing.
253(1-2), 151-159.
-
Bolshakov, A., & Pharr, G. M.
(1998).
Influences of pileup on the measurement of mechanical properties by load and depth sensing indentation techniques. Journal of Materials Research.
13(4), 1049-1058.
-
Rho, J. Y., Tsui, T. Y., & Pharr, G. M.
(1997).
Elastic properties of human cortical and trabecular lamellar bone measured by nanoindentation. Biomaterials.
18(20), 1325-1330.
-
Anders, S., Ager, J. W., Pharr, G. M., Tsui, T. Y., & Brown, I. G.
(1997).
Heat treatment of cathodic arc deposited amorphous hard carbon films. THIN SOLID FILMS.
308(1-4), 186-190.
-
Anders, S., Callahan, D. L., Pharr, G. M., Tsui, T. Y., & Bhatia, C. S.
(1997).
Multilayers of amorphous carbon prepared by cathodic arc deposition. Surface and Coatings Technology.
94, 189-194.
-
Doughty, C., Gorbatkin, S. M., Tsui, T. Y., Pharr, G. M., & Medlin, D. L.
(1997).
Hard boronsuboxide-based films deposited in a sputter-sourced, high-density plasma deposition system. Journal of Vacuum Science and Technology Part A: International Journal Devoted to Vacuum, Surfaces, and Films.
15(5), 2623-2626.
-
Roy, M., Rho, J. Y., Tsui, T. Y., & Pharr, G. M.
(1996).
Variation of young's modulus and hardness in human lumbar vertebrae measured by nanoindentation. American Society of Mechanical Engineerings, Bioengineering Division (Publication) BED.
33, 385-386.
-
Sun, E. Y., Becher, P. F., Hwang, S., Waters, S. B., Pharr, G. M., & Tsui, T. Y.
(1996).
Properties of siliconaluminumyttrium oxynitride glasses. Journal of Non-Crystalline Solids.
208(1-2), 162-169.
-
Ghaffari, K., Wang, B., Danyluk, S., Billone, M., & Pharr, G.
(1996).
Optical interferometric determination of in-plane residual stresses in SiO
2 films on silicon substrates. MATERIALS EVALUATION. 54(10), 1167-1170.
-
Tsui, T. Y., Oliver, W. C., & Pharr, G. M.
(1996).
Influences of stress on the measurement of mechanical properties using nanoindentation: Part I. Experimental studies in an aluminum alloy. Journal of Materials Research.
11(3), 752-759.
-
Bolshakov, A., Oliver, W. C., & Pharr, G. M.
(1996).
Influences of stress on the measurement of mechanical properties using nanoindentation: Part II. Finite element simulations. Journal of Materials Research.
11(3), 760-768.
-
Pharr, G. M., Callahan, D. L., McAdams, S. D., Tsui, T. Y., Anders, S., Anders, A., ... Robertson, J.
(1996).
Hardness, elastic modulus, and structure of very hard carbon films produced by cathodicarc deposition with substrate pulse biasing. Applied Physics Letters.
68(6), 779-781.
-
Shen, T. D., Koch, C. C., Tsui, T. Y., & Pharr, G. M.
(1995).
On the elastic moduli of nanocrystalline Fe, Cu, Ni, and CuNi alloys prepared by mechanical milling/alloying. Journal of Materials Research.
10(11), 2892-2896.
-
Cook, R. F., & Pharr, G. M.
(1994).
Indentation load-displacement behaviour during conventional hardness testing. Journal of hard materials.
5(4), 179-190.
-
Chou, T. C., Nieh, T. G., McAdams, S. D., Pharr, G. M., & Oliver, W. C.
(1992).
Mechanical properties and microstructures of metal/ceramic microlaminates: Part II. A Mo/Al2O3 system. Journal of Materials Research.
7(10), 2774-2784.
-
Pharr, G. M., & Oliver, W. C.
(1992).
Measurement of Thin Film Mechanical Properties Using Nanoindentation. Materials Research Society (MRS) Bulletin.
17(7), 28-33.
-
Pharr, G. M., Oliver, W. C., Cook, R. F., Kirchner, P. D., Kroll, M. C., Dinger, T. R., & Clarke, D. R.
(1992).
Electrical resistance of metallic contacts on silicon and germanium during indentation. Journal of Materials Research.
7(4), 961-972.
-
Pharr, G. M., Oliver, W. C., & Brotzen, F. R.
(1992).
On the generality of the relationship among contact stiffness, contact area, and elastic modulus during indentation. Journal of Materials Research.
7(3), 613-617.
-
Raj, S. V., & Pharr, G. M.
(1992).
Effect of Temperature on the Formation of Creep Substructure in Sodium Chloride Single Crystals. Journal of the American Ceramic Society.
75(2), 347-352.
-
Pharr, G. M., Courington, S. V., Wadsworth, J., & Nieh, T. G.
(1991).
Deformation of an extruded nickel beryllide between room temperature and 820 C. Journal of Materials Research.
6(12), 2653-2659.
-
Chou, T. C., Nieh, T. G., McAdams, S. D., & Pharr, G. M.
(1991).
Microstructures and mechanical properties of thin films of aluminum oxide. Scripta Metallurgica et Materialia.
25(10), 2203-2208.
-
Raj, S. V., Whittenberger, J. D., & Pharr, G. M.
(1991).
Comments on the paper Does the subgrain size influence the rate of creep?. Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing.
145(1), l13-l17.
-
Baykara, T., & Pharr, G. M.
(1991).
Effects of liquid phases on intrinsic interfacial sliding of alkali halide crystals. Acta Metallurgica et Materialia.
39(6), 1141-1150.
-
Pharr, G. M., Oliver, W. C., & Harding, D. S.
(1991).
New evidence for a pressure-induced phase transformation during the indentation of silicon. Journal of Materials Research.
6(6), 1129-1130.
-
Pharr, G. M., Oliver, W. C., & Clarke, D. R.
(1990).
The mechanical behavior of silicon during small-scale indentation. Journal of Electronic Materials.
19(9), 881-887.
-
Cook, R. F., & Pharr, G. M.
(1990).
Direct Observation and Analysis of Indentation Cracking in Glasses and Ceramics. Journal of the American Ceramic Society.
73(4), 787-817.
-
Pharr, G. M., & Cook, R. F.
(1990).
Instrumentation of a conventional hardness tester for load-displacement measurement during indentation. Journal of Materials Research.
5(4), 847-851.
-
Raj, S. V., & Pharr, G. M.
(1989).
Creep substructure formation in sodium chloride single crystals in the power law and exponential creep regimes. Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing.
122(2), 233-242.
-
Pharr, G. M., Oliver, W. C., & Clarke, D. R.
(1989).
Hysteresis and discontinuity in the indentation load-displacement behavior of silicon. Scripta Metallurgica.
23(11), 1949-1952.
-
Raj, S. V., Pharr, G. M., & Whittenberger, J. D.
(1989).
On the stability of the creep substructure in NaCl single crystals. Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing.
113(C), 161-175.
-
Vaandrager, B. L., & Pharr, G. M.
(1989).
Compressive creep of copper containing a liquid bismuth intergranular phase. Acta Metallurgica.
37(4), 1057-1066.
-
Pharr, G. M., Godavarti, P. S., & Vaandrager, B. L.
(1989).
Effects of wetting on the compression creep behaviour of metals containing low melting intergranular phases. Journal of Materials Science.
24(3), 784-792.
-
Pharr, G. M., & Oliver, W. C.
(1989).
Nanoindentation of silver-relations between hardness and dislocation structure. Journal of Materials Research.
4(1), 94-101.
-
Nastasi, M., Hirvonen, J., Jervis, T. R., Pharr, G. M., & Oliver, W. C.
(1988).
Surface mechanical properties of C implanted Ni. Journal of Materials Research.
3(2), 226-232.
-
Baykara, T., & Pharr, G. M.
(1988).
Wetting and penetration of KCl and NaCl grain boundaries by water and methanol. Scripta Metallurgica.
22(5), 715-719.
-
Pharr, G. M., & Godavarti, P. S.
(1987).
A comparison of the creep behavior of saline ice and frozen saline Ottawa sand at 8C. Cold Regions Science and Technology.
14(3), 273-279.
-
Yoshihara, M., Pharr, G. M., & McLellan, R. B.
(1987).
The structure of Pd-Y solid solutions. Scripta Metallurgica.
21(3), 393-396.
-
Raj, S. V., & Pharr, G. M.
(1986).
A compilation and analysis of data for the stress dependence of the subgrain size. IOP Conference Series: Materials Science and Engineering.
81(C), 217-237.
-
Pharr, G. M., & Merwin, J. E.
(1985).
Effects of brine content on the strength of frozen Ottawa sand. Cold Regions Science and Technology.
11(3), 205-212.
-
Pharr, G. M.
(1985).
On the correlation between the constants in the Dorn equation for creep. Scripta Metallurgica.
19(11), 1347-1349.
-
Godavarti, P. S., & Pharr, G. M.
(1985).
A Technique for Producing Ice From NaCl Brine for Studying Fundamental Deformation Behavior. 107(2), 173-176.
-
Sheikh, G. R., & Pharr, G. M.
(1985).
Further observations on creep enhanced by a liquid phase in porous potassium chloride. Acta Metallurgica.
33(2), 231-238.
-
Vaandrager, B. L., & Pharr, G. M.
(1984).
Creep of alpha brass containing a liquid grain boundary phase. Scripta Metallurgica.
18(11), 1337-1339.
-
Nixon, M. S., & Pharr, G. M.
(1984).
The Effects of Temperature, Stress and Salinity on the Creep of Frozen Saline Soil. 106(3), 344-348.
-
Sheikh, R., & Pharr, G. M.
(1984).
The grain size dependence of creep enhanced by a liquid phase in porous potassium chloride. Scripta Metallurgica.
18(8), 837-839.
-
Pharr, G. M., & Ashby, M. F.
(1983).
On creep enhanced by a liquid phase. Acta Metallurgica.
31(1), 129-138.
-
Pharr, G. M.
(1981).
Some observations on the relation between dislocation substructure and power law breakdown in creep. Scripta Metallurgica.
15(7), 713-717.
-
Pharr, G. M., & Nix, W. D.
(1979).
A numerical study of cavity growth controlled by surface diffusion. Acta Metallurgica.
27(10), 1615-1631.
-
Pharr, G. M., & Nix, W. D.
(1979).
Application of the methods of dislocation dynamics to describe plastic flow in both b.c.c. and f.c.c. metals. Acta Metallurgica.
27(3), 433-444.
-
Pharr, G. M., Barnett, D. M., & Nix, W. D.
(1978).
A critique of the ayres-stein method of predicting cleavage planes in metals. Scripta Metallurgica.
12(11), 973-978.
-
Pharr, G. M., & Nix, W. D.
(1976).
A comparison of the orowan stress with the threshold stress for creep for Ni20Cr2ThO2 single crystals. Scripta Metallurgica.
10(11), 1007-1010.
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Hackett, B. L., Sudharshan Phani, P., Walker, C. C., Oliver, W. C., & Pharr, G. M.
(2023).
Advances in the measurement of hardness at high strain rates by nanoindentation. Journal of Materials Research.
38(5), 1163-1177.
-
chapter
-
Rho, J. Y., & Pharr, G. M.
(1999).
Nanoindentation testing of bone. Mechanical Testing of Bone and the Bone-Implant Interface.
(pp. 257-269).
-
Rho, J. Y., & Pharr, G. M.
(1999).
Nanoindentation testing of bone. Mechanical Testing of Bone and the Bone-Implant Interface.
(pp. 257-269).
-
conference paper
-
Hackett, B. L., Wereszczak, A. A., & Pharr, G. M.
(2019).
EVALUATION OF NEW TECHNIQUE TO ESTIMATE YIELD STRESS IN BRITTLE MATERIALS VIA SPHERICAL INDENTATION TESTING. Ceramic Engineering and Science Proceedings.
61-71.
-
Lee, J. H., Zhou, C., Su, C. J., Gao, Y. F., & Pharr, G. M.
(2010).
Similarity relationships in creep contacts and applications in nanoindentation tests. MRS Online Proceedings Library.
209-214.
-
Herbert, E. G., Oliver, W. C., Lumsdaine, A., & Pharr, G. M.
(2009).
Nanoindentation and the mechanical characterization of viscoelastic solids. 1800-1802.
-
Huang, Y., Feng, X., Pharr, G. M., & Hwang, K. C.
(2007).
A nano-indentation model for spherical indenters. MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING.
s255-S262.
-
Wang, S., Lee, S. H., Tze, W., Rials, T., & Pharr, G. M.
(2006).
Nanoindentation as a tool for understanding nano-mechanical properties of wood cell wall and biocomposites
-
Strader, J. H., Shim, S., Bei, H., Oliver, W. C., & Pharr, G. M.
(2006).
An experimental evaluation of the constant relating the contact stiffness to the contact area in nanoindentation. Philosophical Magazine.
5285-5298.
-
Herbert, E. G., Oliver, W. C., & Pharr, G. M.
(2006).
On the measurement of yield strength by spherical indentation. Philosophical Magazine.
5521-5539.
-
Rar, A., Braiman, Y. Y., Oliver, W. C., Goldsby, D. L., Tullis, T. E., & Pharr, G. M.
(2005).
Determination of contact area during small-scale friction experiments by means of continuous stiffness measurements. 261-262.
-
Shim, S., Oliver, W. C., & Pharr, G. M.
(2005).
A critical examination of the Berkovich vs. conical indentation based on 3D finite element calculation. MRS Online Proceedings Library.
39-44.
-
Strader, J. H., Shim, S., Bei, H., Oliver, W. C., & Pharr, G. M.
(2005).
An experimental evaluation of the constant relating the contact stiffness to the contact area in nanoindentation. MRS Online Proceedings Library.
9-14.
-
Wen, S., Bentley, J., Jang, J. I., & Pharr, G. M.
(2005).
Cross-sectional TEM studies of indentation-induced phase transformations in Si: Indenter angle effects. MRS Online Proceedings Library.
279-284.
-
Jang, J. I., Lance, M. J., Wen, S., Huening, J. J., Nemanich, R. J., & Pharr, G. M.
(2005).
Micro-Raman mapping and analysis of indentation-induced phase transformations in germanium. MRS Online Proceedings Library.
291-296.
-
Rar, A., Sohn, S., Oliver, W. C., Goldsby, D. L., Tullis, T. E., & Pharr, G. M.
(2005).
On the measurement of creep by nanoindentation with continuous stiffness techniques. MRS Online Proceedings Library.
119-124.
-
LaManna, J. A., Oliver, W. C., & Pharr, G. M.
(2005).
On the measurement of material creep parameters by nanoindentation. MRS Online Proceedings Library.
147-152.
-
Lee, D., Santella, M. L., Anderson, I. M., & Pharr, G. M.
(2005).
Long-term oxidation of an as-cast Ni3Al alloy at 900 C and 1100 C. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science.
1855-1869.
-
Wen, S., Bentley, J., Jang, J. I., & Pharr, G. M.
(2005).
Cross-sectional TEM studies of indentation-induced phase transformations in Si: Indenter angle effects. MRS Online Proceedings Library.
265-270.
-
Jang, J. I., Lance, M. J., Wen, S., Huening, J. J., Nemanich, R. J., & Pharr, G. M.
(2005).
Micro-Raman mapping and analysis of indentation-induced phase transformations in germanium. MRS Online Proceedings Library.
277-282.
-
Walter, J., Liang, M., Chen, X. B., Jang, J. I., Bergman, L., Patten, J. A., Pharr, G. M., & Nemanich, R. J.
(2005).
UV Raman Scattering Analysis of Indented and Machined 6H-SiC and -Si
3 N4 Surfaces. MRS Online Proceedings Library. 75-80.
-
Rar, A., Specht, E. D., George, E. P., Santella, M. L., & Pharr, G. M.
(2004).
Preparation of ternary alloy libraries for high-throughput screening of material properties by means of thick film deposition and interdiffusion: Benefits and limitations. Journal of Vacuum Science and Technology Part A: International Journal Devoted to Vacuum, Surfaces, and Films.
1788-1792.
-
Wen, S., Bentley, J., Jang, J., Anderson, I. M., & Pharr, G. M.
(2004).
Characterization of Nanoindentations in Silicon by Cross-sectional TEM. Microscopy and Microanalysis.
56-57.
-
Lepienski, C. M., Pharr, G. M., Park, Y. J., Watkins, T. R., Misra, A., & Zhang, X.
(2004).
Factors limiting the measurement of residual stresses in thin films by nanoindentation. THIN SOLID FILMS.
251-257.
-
Park, Y. J., & Pharr, G. M.
(2004).
Nanoindentation with spherical indenters: finite element studies of deformation in the elasticplastic transition regime. THIN SOLID FILMS.
246-250.
-
Jang, J. I., Wen, S., Lance, M. J., Anderson, I. M., & Pharr, G. M.
(2003).
Cracking and phase transformation in silicon during nanoindentation. MRS Online Proceedings Library.
313-318.
-
Spary, I., Bushby, A. J., Jennett, N. M., & Pharr, G. M.
(2003).
Increasing initial yield stress at small length scales. MRS Online Proceedings Library.
123-128.
-
Specht, E. D., Rack, P. D., Rar, A., Pharr, G. M., George, E. P., & Hong, H.
(2003).
Nonequilibrium structures in codeposited Cr-Fe-Ni films. MRS Online Proceedings Library.
45-50.
-
Rar, A., Specht, E. D., Meyer, H. M., Santella, M. L., George, E. P., & Pharr, G. M.
(2003).
Preparation of ternary alloy libraries by means of thick film deposition and interdiffusion: Structure and mechanical properties. MRS Online Proceedings Library.
63-68.
-
Wang, W., Larson, B. C., Pharr, G. M., Ice, G. E., Tischler, J. Z., Budai, J. D., & Liu, W.
(2003).
X-ray microbeam investigation of deformation microstructure in microindented Cu. MRS Online Proceedings Library.
207-212.
-
Bei, H., George, E. P., & Pharr, G. M.
(2003).
Effects of Solidification Parameters on Lamellar Microstructures of Near Eutectic Cr-Cr3Si Alloys. MRS Online Proceedings Library.
71-76.
-
Lee, D. Y., Santella, M. L., Anderson, I. M., & Pharr, G. M.
(2003).
Microstructure and Oxidation of a Cast Nickel Aluminide Alloy. MRS Online Proceedings Library.
291-296.
-
George, E. P., Bei, H., Serin, K., & Pharr, G. M.
(2003).
Microstructure and thermal stability of lamellar Cr-silicides. Materials Science Forum.
4579-4584.
-
Yang, W., Larson, B. C., Pharr, G. M., Ice, G. E., Swadener, J. G., Budai, J. D., Tischler, J. Z., & Liu, W.
(2002).
Deformation microstructure under nanoindentations in Cu using 3D x-ray structural microscopy. MRS Online Proceedings Library.
113-118.
-
Rar, A., Song, H., & Pharr, G. M.
(2002).
Assessment of new relation for the elastic compliance of a film-substrate system. MRS Online Proceedings Library.
431-436.
-
Anderson, P. M., Glaser, E. N., Veress, A. I., Pharr, G. M., Vince, D. G., Cornhill, J. F., & Herderick, E. E.
(2001).
Using indentation and intra-vascular ultrasound to measure arterial response. MRS Online Proceedings Library.
-
Herbert, E. G., Pharr, G. M., Oliver, W. C., Lucas, B. N., & Hay, J. L.
(2001).
On the measurement of stress-strain curves by spherical indentation. MRS Online Proceedings Library.
-
Hay, J. C., Bolshakov, A., & Pharr, G. M.
(1998).
Applicability of Sneddon relationships to the real case of a rigid cone penetrating an infinite half space. MRS Online Proceedings Library.
263-268.
-
Hay, J. C., & Pharr, G. M.
(1998).
Experimental investigations of the Sneddon solution and an improved solution for the analysis of nanoindentation data. MRS Online Proceedings Library.
39-44.
-
Page, T. F., Pharr, G. M., Hay, J. C., Oliver, W. C., Lucas, B. N., Herbert, E., & Riester, L.
(1998).
Nanoindentation characterization of coated systems: P:S2- a new approach using the continuous stiffness technique. MRS Online Proceedings Library.
53-64.
-
Taljat, B., Zacharia, T., & Pharr, G. M.
(1998).
Pile-up behavior of spherical indentations in engineering materials. MRS Online Proceedings Library.
33-38.
-
Hay, J. C., & Pharr, G. M.
(1998).
Critical issues in measuring the mechanical properties of hard films on soft substrates by nanoindentation techniques. MRS Online Proceedings Library.
65-70.
-
Pharr, G. M., Bolshakov, A., Tsui, T. Y., & Hay, J. C.
(1998).
Nanoindentation of soft films on hard substrates: Experiments and finite element simulations. MRS Online Proceedings Library.
109-120.
-
Tsui, T. Y., Ross, C. A., & Pharr, G. M.
(1997).
Effects of adhesion on the measurement of thin film mechanical properties by nanoindentation. MRS Online Proceedings Library.
51-56.
-
Tsui, T. Y., Ross, C. A., & Pharr, G. M.
(1997).
Nanoindentation hardness of soft films on hard substrates: Effects of the substrate. MRS Online Proceedings Library.
57-62.
-
Bolshakov, A., Oliver, W. C., & Pharr, G. M.
(1996).
Finite element studies of the influence of pile-up on the analysis of nanoindentation data. MRS Online Proceedings Library.
-
Bolshakov, A., & Pharr, G. M.
(1996).
Inaccuracies in Sneddon's solution for elastic indentation by a rigid cone and their implications for nanoindentation data analysis. MRS Online Proceedings Library.
-
Tsui, T. Y., Oliver, W. C., & Pharr, G. M.
(1996).
Indenter geometry effects on the measurement of mechanical properties by nanoindentation with sharp indenters. MRS Online Proceedings Library.
-
Tsui, T. Y., Oliver, W. C., & Pharr, G. M.
(1996).
Nanoindentation of soft films on hard substrates: the importance of pile-up. MRS Online Proceedings Library.
-
Lucas, B. N., Oliver, W. C., Pharr, G. M., & Loubet, J. L.
(1996).
Time dependent deformation during indentation testing. MRS Online Proceedings Library.
-
Anders, S., Anders, A., Ager, J. W., Wang, Z., Pharr, G. M., Tsui, T. Y., Brown, I. G., & Bhatia, C. S.
(1995).
Mechanical properties of amorphous hard carbon films prepared by cathodic arc deposition. MRS Online Proceedings Library.
453-458.
-
Tsui, T. Y., Pharr, G. M., Oliver, W. C., Bhatia, C. S., White, R. L., Anders, S., Anders, A., & Brown, I. G.
(1995).
Nanoindentation and nanoscratching of hard carbon coatings for magnetic disks. MRS Online Proceedings Library.
447-452.
-
Harding, D. S., Oliver, W. C., & Pharr, G. M.
(1995).
Cracking during nanoindentation and its use in the measurement of fracture toughness. MRS Online Proceedings Library.
663-668.
-
McAdams, S. D., Tsui, T. Y., Oliver, W. C., & Pharr, G. M.
(1995).
Effects of interlayers on the scratch adhesion performance of ultra-thin films of copper and gold on silicon substrates. MRS Online Proceedings Library.
809-814.
-
Bolshakov, A., Oliver, W. C., & Pharr, G. M.
(1995).
Explanation for the shape of nanoindentation unloading curves based on finite element simulation. MRS Online Proceedings Library.
675-680.
-
Tsui, T. Y., Pharr, G. M., Oliver, W. C., Chung, Y. W., Cutiongco, E. C., Bhatia, C. S., ... Gorbatkins, S. M.
(1995).
Nanoindentation and nanoscratching of hard coating materials for magnetic disks. MRS Online Proceedings Library.
767-772.
-
Pharr, G. M., Tsui, T. Y., Bolshakov, A., & Oliver, W. C.
(1994).
Effects of residual stress on the measurement of hardness and elastic modulus using nanoindentation. MRS Online Proceedings Library.
127-134.
-
Godavarti, P. S., & Pharr, G. M.
(1985).
TECHNIQUE FOR PRODUCING ICE FROM NaCl BRINE FOR STUDYING FUNDAMENTAL DEFORMATION BEHAVIOR. 234-237.
-
Nixon, M. S., & Pharr, G. M.
(1984).
EFFECTS OF TEMPERATURE, STRESS AND SALINITY ON THE CREEP OF FROZEN SALINE SOIL. 77-82.
-
Hackett, B. L., Wereszczak, A. A., & Pharr, G. M.
(2019).
EVALUATION OF NEW TECHNIQUE TO ESTIMATE YIELD STRESS IN BRITTLE MATERIALS VIA SPHERICAL INDENTATION TESTING. Ceramic Engineering and Science Proceedings.
61-71.
Research
principal investigator on
co-principal investigator on
Teaching
teaching activities
- MSEN201 Fund Matls Sci And Eng Instructor
- MSEN489 Sptp: Nanoindent Small Scale M Instructor
- MSEN491 Hnr-research Instructor
- MSEN666 Nanoindent Small Scale Mech Instructor
- MSEN684 Professional Internship: In-ab Instructor
- MSEN685 Directed Studies Instructor
- MSEN691 Research Instructor
Background
education and training
- Ph.D. in Materials Science and Engineering, Stanford University - (Stanford, California, United States) 1979
awards and honors
Contact
first name
- George
has last name
- Pharr
mailing address
-
Texas A&M University
Materials Science & Engineering
3003 TAMU
College Station, TX 77843-3003
USA
Other
In the News
- pharr@tamu.edu