Al_2O_3/Cr_3C_2/Ti(C,N)复合材料摩擦磨损性能研究  

Tribological Properties of Hot-presseing Sintered Advanced Alumina Matrix Ceramic Materials

作　　者：孙德明[1] 许崇海[2] 刘立红[1] 张勤河[3] 鹿晓阳[1] 

机构地区：[1]山东建筑大学,济南250014 [2]山东轻工业学院,济南250100 [3]山东大学机械工程学院,济南250061

出　　处：《人工晶体学报》2008年第5期1278-1283,共6页Journal of Synthetic Crystals

基　　金：国家自然科学基金(No.50405047);教育部高等学校博士学科点专项科研基金(No.20050422032);山东建筑大学博士基金(No.SJBS07007)

摘　　要：采用热压烧结技术制备了Al2O3/Cr3C2/Ti(C,N)复合陶瓷材料,对其力学性能、摩擦磨损性能进行测试,用扫描电镜(SEM)对其磨损表面进行观察。结果表明:A l2O3/Cr3C2/Ti(C,N)复合陶瓷材料具有良好的综合力学性能,在与硬质合金YG8环块摩擦中表现出较高的减摩抗磨性能,摩擦系数与磨损率较单相A l2O3降低近一半。对其磨损机理研究认为,磨粒磨损为主要磨损机制,高的强度和韧性是其具有良好耐磨性能的主要原因。Ceramic composite materials Al2O3/Cr3C2/Ti （C, N） were fabricated with hot-pressing sintering technique. The mechanical properties, the friction and wear behavior were studied. The wear trace was investigated by scanning electron microscope （SEM）. Results indicate that the ceramic composite material Al2O3/Cr3C2/Ti （C, N） has improved mechanical properties, behaves good friction and wear resistance, and especially both the frictional factor and the wear rate decrease about 50% than the monolithic Al2O3 ceramic. The main wear mechanism is the grain-abrasion, and the good flexural strength and fracture toughness improve the wear resistance of the ceramic composite material greatly.

关 键 词：热压烧结 氧化铝 碳氮化钛 碳化铬 摩擦磨损 

分 类 号：TQ174[化学工程—陶瓷工业]