冲击波对AlN粉体性能及低温烧结特性的影响  

EFFECTS OF SHOCK WAVE ON THE AlN POWDER AND ITS LOW TEMPERATURE SINTERING CHARACTERISTICS

作　　者：吴音[1] 缪卫国[1] 周和平[1] 韩巍[2] 薛鸿陆[2] 

机构地区：[1]清华大学材料科学与工程系 [2]国防科技大学二系

出　　处：《硅酸盐学报》1997年第3期281-286,共6页Journal of The Chinese Ceramic Society

基　　金：国家自然科学基金

摘　　要：研究了冲击波对ＡｌＮ粉体性能的影响，并探索了以冲击波处理过的ＡｌＮ粉体为原料，添加５％（以质量计）助烧结剂的低温烧结过程。结果表明，冲击波处理ＡｌＮ粉将使晶粒产生大量的晶格畸变，从而活化了粉体。以冲击波处理的ＡｌＮ粉为原料，在１６１０℃下进行无压烧结，可得到密度为３．３３ｇ／ｃｍ３的ＡｌＮ陶瓷。Effects of explosive shock waves on properties of AlN powder were studied.The low temperature sintering characteristics of AlN powder treated with shock wave and doped with 5%(in mass)additives were investigated.The results show that a considerable amount of lattice strain is introduced in the AlN powder treated with shock wave,thus the powder is activated.After pressureless sintered at 1610℃ for 4h,AlN ceramics with density of 3.33g/cm 3 is obtained.

关 键 词：冲击波 氮化铝陶瓷 陶瓷粉体 低温烧结 烧成 

分 类 号：TQ174.758[化学工程—陶瓷工业] TQ174.652[化学工程—硅酸盐工业]