TiH_2-TiB_2反应烧结研究  

A Study on Reactive Sintering of TiH_2-TiB_2

作　　者：程继红[1] 曾照强[1] 吴崇隽[1] 

机构地区：[1]清华大学材料科学与工程系,北京100084

出　　处：《材料工程》2000年第7期34-36,共3页Journal of Materials Engineering

摘　　要：采用 Ti H2 与 Ti B2 反应烧结原位合成了 Ti与 B的过渡相 Ti B。随着 Ti B2 含量的适当增加 ,Ti B2 逐步转化为Ti B,同时试样的气孔率增大 ,密度减小 ,导电率下降 ;当 Ti H2 ∶ Ti B2 达到 2∶ 1时 ,Ti B2 全部转化为 Ti B,密度回升 ,导电率提高。过渡相 Ti B在 Ti B2The reactive sintering between TiH 2 and TiB 2 was studied in this paper, with the in situ formation of the transient phase TiB With the increase of TiB 2 content, TiB 2 is transformed to TiB gradually and the sample′s porosity increases, density and conductivity decreases But when TiH 2∶TiB 2 increases to 2∶1,all TiB 2 is transformed to TiB and both density and conductivity are improved Laminated structure of the transient phase TiB is observed by SEM

关 键 词：硼化钛 过渡相 反应烧结 导电陶瓷 

分 类 号：TQ174.756[化学工程—陶瓷工业]