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.
出处
《机械工程材料》
CAS
CSCD
北大核心
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)
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
carbon/carbon composite
matrix carbon
phenolic resin
coal-tar pitch
friction and wear prop-erty
