烧结温度对SiC陶瓷基复合材料组织及力学性能的影响  

Effect of Sintering Temperature on Microstructure and Mechanical Property of SiC Ceramics Matrix Composites

作　　者：马静梅[1] 陈琪[1] 肖利[1] 华中[1] 魏茂彬[1] 

机构地区：[1]吉林师范大学物理学院,吉林四平136000

出　　处：《吉林师范大学学报（自然科学版）》2013年第4期61-63,共3页Journal of Jilin Normal University:Natural Science Edition

基　　金：吉林省教育厅"十二五"科学技术研究项目(吉教科合字[2013]第205号)

摘　　要：以β-SiC为原始粉体,利用放电等离子烧结(SPS)工艺1 800℃和1 900℃制备了BAS/SiC陶瓷基复合材料.采用阿基米德排水法、XRD、SEM及三点弯曲等分析测试手段研究了复合材料的致密度、物相组成、微观结构及室温力学性能.结果表明,随着烧结温度升高,复合材料的致密度和室温力学性能增加,而复合材料的物相中没有发现β-SiC向α-SiC的转变,这可能是由于SPS烧结速度较快相对而言烧结时间较短造成的.BAS/SiC composites were synthesized by sparking plasma sintering （SPS） at 1800℃ and 1900℃, respectively with β-SiC starting powders. Densification, phase composition, microstructure and room-temperature mechanical properties of the composites were studied by means of Archimedes＇ principle, XRD, SEM and three-point bending methods. The results showed the relative densities and mechanical properties of the composites increased with the sintering temperature increasing. No phase transformation happened from β-SIC to α-SiC, this could be due to the rapid sintering and short sintering time.

关 键 词：SIC BAS SPS 显微结构 力学性能 

分 类 号：TB332[一般工业技术—材料科学与工程]