Effect of sintering on the relative density of Cr-coated diamond/Cu composites prepared by spark plasma sintering
来源期刊：International Journal of Minerals Metallurgy and Materials2016年第6期
论文作者：Wei Cui Hui Xu Jian-hao Chen Shu-bin Ren Xin-bo He Xuan-hui Qu
文章页码：716 - 722
摘 要：Cr-coated diamond/Cu composites were prepared by spark plasma sintering. The effects of sintering pressure, sintering temperature, sintering duration, and Cu powder particle size on the relative density and thermal conductivity of the composites were investigated in this paper. The influence of these parameters on the properties and microstructures of the composites was also discussed. The results show that the relative density of Cr-coated diamond/Cu reaches 100% when the composite is gradually compressed to 30 MPa during the heating process. The densification temperature increases from 880 to 915°C when the diamond content is increased from 45vol% to 60vol%. The densification temperature does not increase further when the content reaches 65vol%. Cu powder particles in larger size are beneficial for increasing the relative density of the composite.
Wei Cui1，Hui Xu1，Jian-hao Chen1，Shu-bin Ren1，Xin-bo He1，Xuan-hui Qu1,2
1. Institute for Advanced Materials and Technology, University of Science and Technology Beijing2. State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing
摘 要：Cr-coated diamond/Cu composites were prepared by spark plasma sintering. The effects of sintering pressure, sintering temperature, sintering duration, and Cu powder particle size on the relative density and thermal conductivity of the composites were investigated in this paper. The influence of these parameters on the properties and microstructures of the composites was also discussed. The results show that the relative density of Cr-coated diamond/Cu reaches 100% when the composite is gradually compressed to 30 MPa during the heating process. The densification temperature increases from 880 to 915°C when the diamond content is increased from 45vol% to 60vol%. The densification temperature does not increase further when the content reaches 65vol%. Cu powder particles in larger size are beneficial for increasing the relative density of the composite.
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