Cf / SiC制动材料摩擦磨损性能的研究
Research on Friction and Wear Properties of Cf / SiC Brake Material
李 力1,2
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作者单位：1. 江西旅游商贸职业学院, 江西 南昌 330100; 2. 华东交通大学 载运工具与装备省部共建教育部重点实验室, 江西 南昌 330013
中文关键字：Cf /SiC制动材料； 模压成型-无压烧结； 摩擦磨损性能
英文关键字：Cf /SiC brake; molding compression-pressureless sintering; friction and wear properties
中文摘要：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。
英文摘要：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.