Electronically conductive porous TiN ceramics with enhanced strength by aqueous gelcasting Academic Article

abstract

• AbstractIn this paper, we report on a study of electronically conductive porous TiN ceramics prepared by aqueous gelcasting. The effects of solid loading, sintering temperature, and sintering aids on the phase composition, microstructure, and volume fraction of porosity of the prepared porous TiN ceramics are studied. The SEM results show that porosity is uniformly distributed in all of the samples studied. With increasing solid loading and sintering temperature, the volume fraction of porosity decreases slowly. Moreover, the relationship between volume fraction of porosity and mechanical and electrical properties has also been investigated. Our results show that adding Y2O3TiO2 as combined sintering aids results in a sharp decrease in the volume fraction of porosity, and the volume fraction range changes from 42%60% to 28%52%. Moreover, adding sintering aids results in an increase in flexural strength and electrical conductivity with a change in maximum value from 34.6 MPa and 2.3104Sm1 to 101.6 MPa and 5.1104Sm1, respectively.

authors

• Lavernia Borrego, Enrique

published proceedings

• Journal of the American Ceramic Society

author list (cited authors)

• Chen, F., Jia, M., Huang, M., Shen, Q., Lavernia, E. J., & Zhang, L.

complete list of authors

• Chen, Fei||Jia, Mingyong||Huang, Mei||Shen, Qiang||Lavernia, Enrique J||Zhang, Lianmeng

publication date

• December 2018

publisher

• Wiley  Publisher

published in

• Journal of The American Ceramic Society  Journal

keywords

• 40 Engineering
• 4016 Materials Engineering

Digital Object Identifier (DOI)

• 10.1111/jace.15973

start page

• 5309

end page

• 5314

volume

• 101

issue

• 12

URL

• http://dx.doi.org/10.1111/jace.15973