Size and interface coherency dependent phase transformation of niobium nanoparticles embedded in copper matrix by mechanical alloying Conference Paper

abstract

• The object of this work is to investigate the interface and size effects on the structural phase transition of Nb nanoparticles (NPs) embedded in Cu matrix. By means of X-ray diffraction analysis and high-resolution transmission electron microscopy observation, it is found that higher coherency of the Cu/Nb interface benefits the occurrence of phase transition in Nb NPs with larger sizes. The sufficient conditions for the transition are: (1) the size of Nb NPs should be smaller than 8 nm; (2) the Cu/Nb interfaces should be semi-coherent or coherent. The experimental results are consistent with the predictions of Bond Energy model.

authors

• Xu, Shiqing

published proceedings

• PROGRESS IN MATERIALS AND PROCESSES, PTS 1-3

author list (cited authors)

• Lei, R., Xu, S., Wang, M., Li, Y., & Qi, W.

citation count

• 0

complete list of authors

• Lei, Ruoshan||Xu, Shiqing||Wang, Mingpu||Li, Yejun||Qi, Weihong

publication date

• January 2013

publisher

• Trans Tech Publications  Publisher

published in

• Advanced Materials Research  Journal

keywords

• Allotropic Transformation
• Cohesive Energy
• Cu-nb Alloy
• Mechanical Alloying
• Size Dependence

Digital Object Identifier (DOI)

• 10.4028/www.scientific.net/AMR.602-604.243

International Standard Book Number (ISBN) 13

• 978-3-03785-543-0

start page

• 243

end page

• 248

volume

• 602-604

URL

• http://dx.doi.org/10.4028/www.scientific.net/amr.602-604.243