Comput.Mater.Sci. 41, 156-163, 2007

EFFECT OF DIAMOND SHAPES AND ASSOCIATED THERMAL BOUNDARY RESISTANCE ON THERMAL CONDUCTIVITY OF DIAMOND-BASED COMPOSITES

J. Flaquer1,2, A. Ríos², A. Martín-Meizoso1,2, S. Nogales³, H.J. Böhm³

¹TECNUN, San Sebastián, Spain
²CEIT, San Sebastián, Spain
³Institute of Lightweight Design and Structural Biomechanics,
TU Wien, Vienna, Austria


Abstract - 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.


(hjb,071127)