TiC-TiB_2复合陶瓷制备的研究进展  

Progress in Research on Preparation of TiC-TiB_2 Composite Ceramics

作　　者：曲振生[1] 赵忠民[1] 张龙[1] 潘传增[1] 杨权[1] 黄雷[2] 

机构地区：[1]军械工程学院先进材料研究所,石家庄050003 [2]军械工程学院装备指挥与管理系,石家庄050003

出　　处：《材料导报》2009年第17期46-51,共6页Materials Reports

基　　金：国家自然科学基金项目资助(50672131)

摘　　要：通过介绍国内外TiC-TiB2复合陶瓷的制备方法、显微结构与合成机理,并结合超重力下燃烧合成TiC-TiB2复合陶瓷的显微结构与合成机理,探讨了各种制备方法的特点及对TiC-TiB2复合陶瓷致密化的影响,并指出自蔓延高温合成因其成本低,现已成为制备该类复合陶瓷主要的、最具前景的关键技术,同时为促进陶瓷致密、细化组织并提高组织均匀性,该材料的发展方向应着重于采用自蔓延高温合成制备TiC-TiB2共晶系陶瓷。Based on the introduction of preparation processes, microstructures and formation mechanisms of TiC-TiB2 composite ceramics, and by combining with the mierostructures and formation mechanism of TiC-TiB2 prepared by combustion synthesis under high gravity, the characteristics of the various processes and their influences on densification of TiC-TiB2 composite ceramics are discussed, and self-propagating high-temperature （SHS） is considered as a key and the most promising technology for preparing TiC-TiB2 composite ceramics because of low cost, whereas the development trend of TiC-TiB2 composite ceramics is to prepare the eutectics in TiC-TiB2 system by SHS in order to promote the densification, refine the microstructures and improve the microstructure homogeneity.

关 键 词：TiC-TiB2复合陶瓷 自蔓延高温合成 超重力 显微结构 合成机理 

分 类 号：TQ174.758[化学工程—陶瓷工业] TG174.442[化学工程—硅酸盐工业]