中文摘要：

在传统摩擦材料中引入导热层,在保证制动效果的前提下,既降低了材料的摩擦热,又提高了材料的性能.采用MPX-2000型磨损试验机和有限元模拟考察双层摩擦材料不同导热层厚度（1.5、3.0、4.5、6.0和7.5 mm）与不同导热系数（2、4、6、8和10 W/（m·K））对表面最高温度的影响,利用扫描电子显微镜（SEM）对摩擦材料的磨损表面形貌进行分析.结果表明：引入导热层后,摩擦表面最高温度（18℃）和磨损率（29.6％）均降低.同时研究发现,增加导热层厚度摩擦材料的接触面温度降低,导热层厚度越大,导热系数影响的效果越明显.

英文摘要：

To ensure the brake performance,a heat-conductive layer was added to traditional friction materials,it accelerated heat transfer and improved the performance of the friction materials.The MPX2000 friction tester and the finite element method were used to investigate the effects of heat-conductive layer thicknesses （1.5,3.0,4.5,6.0 and 7.5 mm） and thermal conductivity （2,4,6,8 and 10 W/（m· K）） of double-layer friction materials.The friction surface was characterized by scanning electron microscope （SEM）.Results showed that the friction materials with heat-conductive layer decreased the maximum contact temperature （18 ℃） and wear rate （29.6％）.The increase of the thickness of heatconductive layer decreased the contact temperature.The thicker the heat-conductive layer was,the greater the influence of the thermal conductivity was.