Abstract
Diamond/Cu composites with excellent thermal performance were fabricated by a novel method which coated diamond particles with tungsten as the inner layer through salt-bath plating and then deposited copper as the outer layer through electroless plating. After ultra-high cold pressing and vacuum sintering, these double-layer particles directly formed diamond/Cu composites without addition of copper powders. The thermal conductivity of 60 vol.% diamond/Cu composite reached maximum at 661 W m-1 K-1. The outstanding performance can be ascribed to strong interface bonding in the double-layer particles and uniform distribution of diamond particles in the composites when electroless plating was used to replace copper powder addition.
Published Version
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