Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7049873 | Applied Thermal Engineering | 2013 | 7 Pages |
Abstract
Cr7C3 coatings were formed on diamond particles for improving the wettability between diamond particles and copper. The coatings were formed with a reaction medium of chromium in mixed molten salt. Copper-diamond composites with Cr7C3 coatings on diamond particles have been fabricated by vacuum pressure infiltration method. The microstructure of interfacial bonding between diamond and copper was discussed. Thermal conductivity and thermal expansion behavior of the obtained copper-diamond composites with various fractions of diamond particles were investigated. The as-fabricated composite exhibit a thermal conductivity of 562Â WÂ mâ1Â Kâ1 associated with coefficient of thermal expansion of 7.8Â ÃÂ 10â6Â Kâ1 with a Cr7C3-coated diamond volume fraction of 65%. These results indicate that the obtained composites are suitable for being heat sink applications.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Qiping Kang, Xinbo He, Shubin Ren, Lin Zhang, Mao Wu, Caiyu Guo, Wei Cui, Xuanhui Qu,