机械合金化-放电等离子烧结制备Ti_2SnC导电陶瓷  

Preparation of Ti_2SnC Electric Ceramics by Mechanical Alloying and Spark Plasma Sintering

作　　者：金松哲[1,2] 任露泉[2] 张力辉[1] 王蕾[1,3] 孙世成[1] 

机构地区：[1]长春工业大学先进结构材料教育部重点实验室,长春130012 [2]吉林大学工程仿生教育部重点实验室,长春130022 [3]长春汽车工业高等专科,长春130011

出　　处：《人工晶体学报》2009年第S1期68-71,共4页Journal of Synthetic Crystals

基　　金：吉林省科技发展项目(No.20070511)

摘　　要：采用放电等离子烧结(SPS)技术对机械合金化合成的Ti2SnC粉体进行烧结,研究了烧结温度对机械合金化和SPS烧结Ti2SnC导电陶瓷块体相组成、显微组织及微结构的影响。结果表明:机械合金化合成Ti2SnC粉体在800~1000℃之间进行SPS烧结可以获得纯度较高的致密块体,在1000℃进行烧结时,孔隙率低于2%。在600~1000℃范围内,烧结块体中Ti2SnC的含量随烧结温度的提高逐渐增加;Ti2SnC的晶粒大小随温度升高逐渐长大。Ti2SnC electric ceramics were prepared by mechanical alloying and spark plasma sintering.The effects of the sintering temperature on the phases,crystal structure and microstructure of Ti2SnC electric ceramics were investigated.The results showed that the high purity and dense bulks of Ti2SnC can be prepared by mechanical alloying,and sintered at 800-1000 ℃ using the SPS method.The porosity of the bulks less than 2% sintered at 1000 ℃.The Ti2SnC content in sintered bulks increases,and the grain sizes of Ti2SnC bulk grow with increasing sintered temperature at the range of 600-1000 ℃.

关 键 词：Ti2SnC 放电等离子烧结(SPS) 机械合金化 

分 类 号：TF124.5[冶金工程—粉末冶金]