透明氮化铝陶瓷的制备  

Preparation of Translucent AlN Ceramics

作　　者：周艳平[1] 王岱峰[1] 奚益明[1] 庄汉锐[1] 温树林[1] 郭景坤[1] 严东生[1] 

机构地区：[1]中国科学院上海硅酸盐研究所,上海200050

出　　处：《无机材料学报》1999年第4期674-678,共5页Journal of Inorganic Materials

基　　金：国家自然科学重点基金;中国博士后科学基金;上海市博士后科研资助

摘　　要：本文采用碳热还原法制得的 Ａｌ Ｎ 粉， 使用烧结剂 Ｃａ Ｃ２ ， 热压制备了透明氮化铝陶瓷实验证明， 纯度高、粒径较小、且均匀的 Ａｌ Ｎ 粉是制备透明 Ａｌ Ｎ 陶瓷的必要条件 Ａｌ Ｎ 陶瓷从紫外、可见光到近红外均透明， 显微结构研究表明， Ａｌ Ｎ 陶瓷透明是由于晶粒完整规则， 紧密排列， 晶界干净， 而气孔、晶粒内和晶界第二相杂质。Translucent AlN ceramics were prepared by hot pressing with AlN powder synthesized by using carbon thermal reducing method and additive CaC 2 The experiments show that the AlN powder with high purity, small particle size and narrow size distribution is necessary for translucent AlN ceramics CaC 2 is an effective sinteringadditive for translucent AlN ceramics, improving the densification of AlN and evaporating cleaning the grain boundary The product is translucent in the rangeof ultraviolet to infrared The microstructure study shows that the translucentreason is the grains of AlN complete growing and closely arranging

关 键 词：透明陶瓷 氮化铝 制备 陶瓷 

分 类 号：TQ174.758[化学工程—陶瓷工业]