烧结工艺对β-氮化硅陶瓷的影响  

Effect of Sintering Technics on Densification & Mechanical Properties of β-Si_3N_4 Ceramics

作　　者：周长灵[1] 范景林[1] 胡晓清[2] 邱桂杰[3] 

机构地区：[1]山东工业陶瓷研究设计院,淄博255031 [2]清华大学材料学院,北京100084 [3]北京玻璃钢研究设计院,102101

出　　处：《陶瓷》2005年第10期30-33,43,共5页Ceramics

基　　金：国家863项目资助;项目编号:2003AA305430

摘　　要：以β-Si3N4粉末为原料,以YAG(钇铝石榴石)为烧结助剂,通过气氛压力烧结(GPS)制备出致密的β-氮化硅陶瓷材料,形成大小均匀的柱状颗粒和小球状颗粒复合显微结构,研究了烧结助剂质量分数、烧结温度以及保温时间对β-氮化硅陶瓷致密化程度及力学性能的影响。Dense silicon nitride ceramics were obtained from β - Si3 N4 powder with YAG as sintering additives through gas pressure sintering（GPS） ,the material was composed of small rodlike grains and globoid grains dispersed uniformaly in the matrix.The effect of additives content and sintering temperature and holding time on the densigcation ＆ mechanical properties of β - Si3N4 ceramics were studied.

关 键 词：烧结助剂 烧结温度 保温时间 致密化 力学性能 氮化硅陶瓷材料 烧结工艺 Β-SI3N4 烧结助剂 钇铝石榴石 压力烧结 显微结构 质量分数 力学性能 

分 类 号：TQ174.758[化学工程—陶瓷工业] TN248.13[化学工程—硅酸盐工业]