Effect of diamond shapes and associated thermal boundary resistance on thermal conductivity of diamond-based composites

31. 05. 2007

J. Flaquer a,b,*, A. Rı´os b, A. Martı´n-Meizoso a,b, S. Nogales c, H. Bo¨hm c

This work presents techniques to generate densely packed diamond-like particles, for example, as present in a metal matrix composite of Al, Cu, or Ag reinforced with single crystals of synthetic diamonds; as intended to be used for heat sinks or very efficient thermal conductors, spreaders, etc. Two different ways are described to predict the thermal conductivity of the composite: line tracing and surface- averaged Hasselman and Johnson. The effects of diamond volume fraction, size and, in particular, shapes on the composite thermal conductivity are discussed.

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