碳纤维/碳基摩擦材料的摩擦学性能研究  

Study on the Tribological Properties of Carbon-Fiber/Carbon-based Friction Material

作　　者：杜建华 李辉 宁克焱[2] 韩明[2] 王浩旭 DU Jianhua 1, LI Hui 1, NING Keyan 2, HAN Ming 2, WANG Haoxu 1(1 Department of Science Research, Academy of Armored Force, Beijing 100072; 2 China North Vehicle Research Institute, Science and Technology on Vehicle Transmission Laboratory, Beijing 10007)

机构地区：[1]陆军装甲兵学院科研技术处,北京100072 [2]中国北方车辆研究所车辆传动重点实验室,北京100072

出　　处：《材料导报》2018年第A01期381-384,414,共5页Materials Reports

基　　金：国家自然科学基金(51001117);军队科研项目(2015YC05)

摘　　要：为适应坦克装甲车辆对摩擦系统高能量密度的要求,采用树脂浸渍碳化工艺制备了碳纤维/碳基摩擦材料,通过离合器试验台对材料进行了摩擦磨损试验,并使用扫描电子显微镜(SEM)、能谱分析仪(EDS)和3D激光形貌仪对材料表面形貌和磨屑形貌进行了分析。结果表明,碳纤维/碳基摩擦材料的动摩擦系数稳定(μ=0.11);摩擦扭矩曲线平滑,制动平稳性好;体积磨损率为3.2×10-8 mm3·J,耐磨性好;耐热系数达43 900J2·mm-4·s-1,可以在高能量密度工况下使用。碳纤维/碳基摩擦材料与钢对偶片之间的主要磨损机制为犁沟磨损和磨粒磨损。In order to adapt to the requirement of high energy density for the friction system of tank and armored vehicle,the carbon-fiber/carbon-based friction material were prepared by resin impregnation and carbonization technology.The clutch test-bed were used to evaluate the tribological properties of the material.The scanning electron microscope（SEM）,energy dispersive spectrometer（EDS）and 3 Dlaser profilometer were used to analyze the surface morphology and the friction chip＇s morphology.The results showed that,the dynamic friction coefficient of carbon-fiber/carbon-based friction material is stable（μ=0.11）.It has a good braking stationarity for its smoothly friction torque curves.The volume wear rate is 3.2×10-8 cm3·J-1 which show a good wear resistance.The heat resistance coefficient reached 43 900 J2·cm-4·s-1,which indicate that it can be used in high energy density conditions.The main wear mechanism between carbon-fiber/carbon-based friction material and steel dual disc is plough wear and abrasive wear.

关 键 词：摩擦材料 摩擦系数 磨损率 耐热系数 碳纤维 

分 类 号：TB332.1[一般工业技术—材料科学与工程]