Effect of Diamond Shape on Thermal-Physical Properties of Diamond/Cu Composites

Abstract:

High volume fraction diamond/copper composites with different diamond shape were prepared by vacuum pressure infiltration. In this paper, the effect of diamond type on thermo-physical properties of the composites was researched. The results showed that the composites with broken diamond exhibited the lowest thermal conductivity and coefficient of thermal expansion, only 401W/m•k and 6.2×10^-6m/K respectively, and the composites with monocrystalline diamond had the best properties, reaching to 527W/m•K and 8.3×10^-6m/K respectively, and the properties of the composites with modified-shape diamond were in the middle. The difference in the properties of the composites with different-shape diamond is attributed to their various specific surface areas.

• Periodical: Advanced Materials Research (Volume 1095)
• Pages: 12-15
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1095.12
• Online since: March 2015
• Authors: Jian Hao Chen, Shu Bin Ren*, Xin Bo He, Xuan Hui Qu
• Keywords: Cu Composites, Diamond, Shape, Thermal Physical Properties

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