影响碳/金属复合材料导热性能的主要因素探讨  

A Discussion on the Main Factors Affecting Thermal Conductivity of Carbon/Metal Matrix Composites

作　　者：李通 李金权[1] 王文广[1,2] 倪丁瑞[2] LI Tong;LI Jinquan;WANG Wenguang;NI Dingrui(School of Mechanical Engineering,Liaoning Shihua University,Fushun 113001;Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016)

机构地区：[1]辽宁石油化工大学机械工程学院,抚顺113001 [2]中国科学院金属研究所,沈阳110016

出　　处：《材料导报》2018年第15期2640-2646,共7页Materials Reports

基　　金：国家自然科学基金(51641103);中国科学院金属研究所创新基金(2015-ZD02)

摘　　要：碳/金属复合材料在充分发挥增强体高导热、低热膨胀等优异性能的同时,还结合了金属材料易成形性等特点,成为近年来新型热管理材料的研究热点之一。目前,高性能导热复合材料仍存在一些关键问题亟待解决,如:碳材料与金属基体之间的界面调控、材料在制备过程中易产生微观裂纹等缺陷以及增强体空间排布的优化设计等。本文介绍常用高导热碳/金属复合材料的制备方法,并对影响金属基复合材料导热性能的因素及相应的改进措施进行了深入探讨。Recently,the carbon/metal composites which acquire high thermal conductivity and low thermal expansion of carbon reinforcements and also inherit the formability of metal matrices,have provoked intensive research interest.Up to now,there are still some problems which deserve solutions,such as carbon/metal interface control,micro-cracks formed in fabrication processing,optimizing the spatial arrangement of reinforcements and so on.This article introduces briefly the normal preparation methods of carbon/metal composites,and renders a critical discussion on the factors affecting the thermal conductivity of composites as well as the corresponding countermeasures.

关 键 词：金属基复合材料 高导热性能 碳材料 界面调控 微观缺陷 增强体空间排布 

分 类 号：O551.3[理学—热学与物质分子运动论]