碳纤维增强铜基复合材料的制备与表征  

Preparation and Characterization of Copper Matrix Composite Reinforced by Carbon Fiber

作　　者：赵宇[1] 刘润红[1] 冉旭[1] 任祥[1] 

机构地区：[1]长春工业大学材料科学与工程学院先进结构材料省部共建教育部重点实验室,吉林长春130012

出　　处：《热加工工艺》2015年第10期145-148,共4页Hot Working Technology

基　　金：国家自然科学基金(51201020);长春市科技计划项目(2011172);吉林省教育厅科研计划项目(2011161)

摘　　要：采用电镀工艺,使碳纤维表面形成铜镀层。利用机械合金化法得到铜石墨复合粉末,通过真空热压烧结技术制备碳纤维增强铜基复合材料。观察该复合材料的组织形貌。测定相组成,测量显微硬度与密度。结果表明,镀铜碳纤维的加入有利于石墨铜基复合材料的组织致密化,可将该复合材料的相对密度由74%提高到91%,显微硬度由31.0 HV提高至38.7 HV。当镀铜碳纤维质量分数为10%时,由于碳纤维的偏聚,其基体的显微硬度略有降低。The electroplating process was applied to fabricate copper coating on carbon fiber.Cu-graphite composite powders were prepared by mechanical alloying method,and finally carbon fiber reinforced copper matrix composite was fabricated by hot pressed sintering technology.The structure of the composite was observed.The chemical composition of the composite was systematically investigated.The microhardness of the composite was analyzed.The density of the composite was analyzed.The results show that the welded joint of copper coating on carbon fiber contributes to the densification of the structure of the composite.The relative density of the composite increases from 74% to 91% and the microhardness increases from 31.0 to 38.7.The microhardness decreases when the mass fraction of copper coating on carbon fiber is under 10% by the segregation of carbon fiber.

关 键 词：机械合金化 碳纤维 铜基复合材料 组织及性能 

分 类 号：TF811[冶金工程—有色金属冶金]