Fabrication and thermal conductivity of copper matrix composites reinforced with Mo2C or TiC coated graphite fibers
Fabrication and thermal conductivity of copper matrix composites reinforced with Mo2C or TiC coated graphite fibers
复制标题
Mo2C或TiC涂层石墨纤维增强铜基复合材料的制备及导热性能
DOI：
10.1016/j.materresbull.2013.07.064
复制
发表时间：
2013-11-01
影响因子：
5.4
通讯作者：
Qu, Xuan-Hui
中科院分区：
文献类型：
--
作者：
Liu, Qian;He, Xin-Bo;Qu, Xuan-Hui
Graphite fiber reinforced Cu-based composites have good thermal conductivity, low coefficient of thermal expansion for heat sink applications. In these composites, the quality of interfacial bonding between the copper matrix and the graphite fibers has significant influence on the thermal properties of composites. In this study, two different carbide coatings (Mo2C or TiC) were synthesized on graphite fiber to promote the interfacial bonding in composites. Fibers/Cu composites had been produced by spark plasma sintering process. The results showed that the densification, interfacial bonding and thermal conductivity of coated composites were improved distinctly compared to that of uncoated ones. The enhanced composites present 16-44% increase of thermal conductivity in X-Y plane. An original theoretical model was proposed to estimate the interface thermal resistance. The result showed that the interfacial thermal resistance was largely reduced by one order of magnitude with the introduction of carbide interlayer. (C) 2013 Elsevier Ltd. All rights reserved.
