基体炭对炭/炭复合材料摩擦磨损性能的影响  

Effect of Matrix Carbon on Friction and Wear Property of Carbon/Carbon Composite

作　　者：胡聪聪[1] 刘洪波[1] 肖绍懿[1] 邵南子[1] 

机构地区：[1]湖南大学材料科学与工程学院,长沙410082

出　　处：《机械工程材料》2012年第8期14-17,41,共5页Materials For Mechanical Engineering

基　　金：国家"973"计划资助项目(2011CB605804)

摘　　要：采用液相浸渍-炭化法制备了沥青基炭/炭复合材料(P-C/C)和沥青-酚醛树脂双基体炭/炭复合材料(D-C/C),研究了它们的增密效率、抗弯强度和摩擦磨损性能的差别。结果表明:P-C/C的增密效率高于D-C/C的;在体积密度基本相同的情况下,两种复合材料的抗弯强度相近;D-C/C的摩擦因数较大,磨损较严重;基体炭结构和性能的差别是造成两种复合材料摩擦磨损性能不同的主要原因。Pitch-matrix carbon/carbon composites（P-C/C） and pitch ＆ phenolic resin matrix carbon/carbon composites （D-C/C） were prepared using liquid impregnation/carbonization method. Densification efficiency, flexural strength and friction and wear properties of two kinds of carbon/carbon composites were studied. The results show that P-C/C exhibited higher densifieation efficiency than D-C/C. When the volume densities of the two kinds of carbon/carbon composites were the same, no apparent difference was shown in flexural strength. D-C/C showed a higher friction coefficient and fairly serious wear. The difference of structures and properties of matrix carbon caused different friction and wear properties of these two kinds of carbon/carbon composites mainly.

关 键 词：炭/炭复合材料 基体炭 酚醛树脂 煤沥青 摩擦磨损性能 

分 类 号：TB332[一般工业技术—材料科学与工程]