摘要
以碳纤维为增强体,以树脂为粘结剂,运用模压成型-无压烧结法制备了Cf/SiC陶瓷基制动材料。研究了碳纤维分布、碳纤维长度和纤维体积分数对Cf/SiC复合材料摩擦磨损性能的影响。结果表明:当碳纤维以纤维单丝状态分布时,纤维与基体结合界面增多,纤维能充分发挥增强增韧作用,使材料的摩擦磨损性得到提高;随着碳纤维长度的增加,磨损量先减小后增加;随着碳纤维含量的增加,磨损量先减小后增大。
Using carbon fiber as reinforcement and resign as binder,Cf /SiC brake materials were prepared by molding compression-pressureless sintering.The effects of fiber distribution,fiber length and fiber volume on the mechanical properties were investigated.The results show that the dispersing distribution of the fiber has compact filling between single fibers,which can also make interface between fiber and matrix increase,and then the wear resistance is improved by the fibers,which can play a role of strengthening and toughening.With the increase of carbon fiber length,the wear mass loss of the material first falls and then rises.When the carbon fiber content is 5%,10% and 15%,respectively,with the carbon fiber content increasing,the wear resistance of the material first falls and then rises.
出处
《热加工工艺》
CSCD
北大核心
2011年第20期92-95,共4页
Hot Working Technology
