Elastic moduli of nc-TiN/a-Si3N4 nanocomposites

Compressible, yet superhard

Stan Vepek, Stephen G. Prilliman, Simon M. Clark

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Earlier measurements of elastic moduli of nc-TiN/a-Si3N 4 nanocomposites of different composition and hardness by means of vibrating reed and surface Brillouing scattering, that yield Young's and shear modulus, as well as the Poisson's ratio, have been confirmed by high-pressure X-ray diffraction measurements, that yield bulk modulus. It is found that elastic moduli of all measured samples are essentially the same within relatively small error of measurements, and only slightly lower than that of pure TiN. The nanocomposites are superhard thanks to their unique nanostructure with strengthened SiNx interface.

Original languageEnglish
Pages (from-to)1175-1178
Number of pages4
JournalJournal of Physics and Chemistry of Solids
Volume71
Issue number8
DOIs
Publication statusPublished - Aug 2010
Externally publishedYes

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