Commentary on using H/E and H/E as proxies for fracture toughness of hard coatings

By Xinjie Chen, Yao Du, Yip-Wah Chung. Thin Solid Films, 2019

280 citations recorded by the source corpus.

Abstract While positive correlation between fracture toughness and H/E and H3/E2 has been reported for some ceramic coatings, we outline an argument that such correlation cannot be true in general, especially for nanolayer and nanocomposite coatings that present multiple interfaces to impede crack growth. Literature data are presented to support this argument.

Subfields: Aerospace Engineering, Mechanical Engineering, Mechanics of Materials

View Paper: https://www.semanticscholar.org/paper/11c1cb5e58638f36a4defaad072c6d5d42cd1609