摘要
综述热管理用高导热金刚石/铝复合材料的主流制备技术和影响其导热性能发挥的关键因素,重点介绍真空热压烧结、放电等离子烧结、无压浸渗、真空气压浸渗和挤压铸造等制备工艺,并评述各自的优缺点及其适用性。探讨金刚石颗粒特性、基体合金元素和金刚石表面镀层对复合材料的界面组态与导热性能的影响规律,指出通过基体合金化和金刚石表面金属化可改善复合材料的界面结合状态,提出改善金刚石/铝复合材料的导热性能应重点关注界面微结构调控及其对复合材料界面热传导的作用机制。
The mainstream fabrication technologies and the key factors affecting their thermal conductivity of diamond/aluminium composites with high thermal conductivity for thermal manag-ement were reviewed.The vacuum hot pressing sintering,spark plasma sintering,pressureless infiltration,vacuum pressure infiltration and squeeze casting were emphatically introduced,and their advantages and disadvantages as well as their applicability were reviewed.The influence of characteristics of diamond particles,matrix alloy elements and diamond surface coating on the interface configuration and thermal conductivity of diamond/aluminium composites was discussed.It was pointed out that matrix alloying and diamond surface metallization can improve the interface bonding of the composites.In order to improve the thermal conductivity of diamond/aluminium composites,the regulation of interface microstructure and the mechanism of interface heat transfer should be paid more attention to.
作者
刘园
崔岩
郭开金
曹雷刚
杨越
LIU Yuan;CUI Yan;GUO Kai-jin;CAO Lei-gang;YANG Yue(School of Mechanical and Materials Engineering,North China University of Technology,Beijing 100144,China)
出处
《材料工程》
EI
CAS
CSCD
北大核心
2020年第12期44-52,共9页
Journal of Materials Engineering
基金
国家重点研发计划课题(2017YFB0703102)。
