SUPERHARDNESS EFFECT IN AU/NI MULTILAYERS

[摘要] The presence of an enhanced hardness, that is, a 'superhardness effect', is found as a behavior parallel to the supermodulus effect in Au/Ni multilayer structures. The submicron-thick Au/Ni coatings are prepared by magnetron sputter deposition. A microindenter is used to measure load as a function of indentation depth. An increase in hardness is measured as the Au/Ni layer pair spacing decreases. A local maximum in hardness occurs for samples with layer pairs consisting of 4-6 atomic planes of each metal component.

[发布日期] 1993-09-01

[效力级别]  Proceedings Paper