Effect of diamond on the thermal conductivities of diamond-copper composites prepared by spark plasma sintering
Diamond-copper composites are fabricated by spark plasma sintering (SPS).The effects of particle size,original properties and coatings of diamond on the thermal conductivity (TC) of diamond-copper composites have been investigated,respectively.The results indicate that thermal conductivity of composites enhances with an increase in particle size and original properties of diamond.Composites with Cr,Ti or Ni coatings on diamond surface appear remarkably higher TC than that which without any coatings.The improvements of TC of diamond/copper composites are mainly due to the large particle size diamond decreasing the interfacial area in composites,the high original properties diamond possessing higher original TC,and coatings on diamond surface declining the interfacial thermal resistance and improving the wetting properties between diamond and copper.
Spark plasma sintering Thermal properties Composites
Ying-Hu Dong Rui-Qing Zhang Zhi-Guo Ye
Key Laboratory for Microstructural Control of Metallic Materials of Jiangxi Province(NanchangHangkon School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063,China
国际会议
西安
英文
25-29
2012-08-24（万方平台首次上网日期，不代表论文的发表时间）