Cf /SiC制动材料弯曲性能的研究
Bending Strength 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； 弯曲强度
英文关键字：Cf /SiC brake material; molding compression-pressureless sintering; bending strength
中文摘要：以短碳纤维为增强体，以树脂为粘结剂，运用模压成型-无压烧结法制备Cf /SiC陶瓷制动材料。研究了烧结助剂含量、烧结温度、碳纤维长度和碳纤维体积分数对该复合材料弯曲强度性能的影响。结果表明：随着烧结助剂含量的增加，Cf /SiC制动材料的密度先增加后减小，抗弯强度也先增加后减小；随着烧结温度的增加，Cf /SiC制动材料的弯曲强度先增大后减小；随着碳纤维长度的增加，材料的弯曲强度先增大后减小,当碳纤维含量分别为5%、10%、15%时，该复合材料的弯曲强度先增大后减小。
英文摘要：Taking short carbon fiber as reinforcement and resin binder as binder, Cf /SiC brake material was prepared by the way of molding compression-pressureless sintering. The effects of sintering aids content, sintering temperature, fibers length and fibers volume on the mechanical properties were investigated by measuring the bending strength. The results show that with the increase of sintering aids content, the density and bending strength of the materials first rise and then fall. With the increase of sintering temperature, the bending strength of the materials first rises and then falls. With the increase of carbon fiber length, the bending strength first rises and then falls. When the carbon fiber content is 5%, 10% and 15%, respectively, with the carbon fiber content increasing, the bending strength first rises and then falls.