放电等离子体烧结SiC/Cu金属陶瓷复合材料研究  

Study on SiC/Cu Composites Prepared by Spark Plasma Sintering

作　　者：张锐[1] 王海龙[1] 辛玲[1] 秦丹丹[1] 黎寿山[1] 刘锁兵[1] 

机构地区：[1]郑州大学材料工程学院,河南郑州450002

出　　处：《郑州大学学报（工学版）》2004年第4期41-44,共4页Journal of Zhengzhou University（Engineering Science）

基　　金：河南省杰出青年基金资助项目;清华大学新型陶瓷与精细工艺国家重点实验室开放基金资助项目

摘　　要：选用SiC/Cu包裹复合粉体,采用最新型的放电等离子体烧结方式制备了SiC/Cu金属陶瓷复合材料.分别采用XRD、SEM等方法对烧成样品进行表征.结果表明,放电等离子体烧结过程中,由于等离子体的作用,不同的烧成温度使得烧成样品中的物质及相应的含量发生变化.样品的密度随温度升高而增大,而硬度在730℃左右出现最大值,这是采用放电等离子体烧结制备SiC/Cu金属陶瓷复合材料的最佳烧成温度.由于SiC的增强作用,使得SiC/Cu金属陶瓷复合材料的硬度远远高于Cu.Coated SiC/Cu composite particles and spark plasma sintering method are used to prepare SiC/Cu composites. XRD, SEM techniques are employed to characterize the sintered samples. It is found out that phase changes occur during the sintering process due to the plasma action. The density of sintered composites increases with increasing temperature. The maximum microhardness appears at about 730 ℃, indicative of the optimised sintering temperature for the preparation of SiC/Cu composites with spark plasma sintering. The microhardness of SiC/Cu composites is significantly enhanced by the SiC particulate reinforcement.

关 键 词：炭化硅 铜 金属陶瓷 复合材料 放电等离子体烧结 

分 类 号：TB333[一般工业技术—材料科学与工程]