Abstract

Abstract Thermal conductivity data reported for chemical vapour deposited (CVD) diamond films have been used to calculate the effective thermal conductivity of continuous diamond-fibre-reinforced metal-matrix composites. It is concluded that the very high thermal conductivity values (about 2000 W m −1 K −1 ) reported for CVD diamond may be difficult to achieve in practical composites. However, the combination of properties such as thermal conductivity, elastic modulus and density predicted for diamond-fibre composites are far superior to those offered by alternative materials. With hollow fibres the ability to combine conductive and convective cooling increases the design options in thermal management systems.

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