相变增韧和层状复合协同强韧化Al_2O_3陶瓷  

STRENGTHENING AND TOUGHENING OF ALUMINA CERAMICS THROUGH PHASE TRANSFORMATION AND LAMINATED COMPOSITE APPROACHES

作　　者：杨辉[1] 吴义兵[1] 葛曼珍[1] 

机构地区：[1]浙江大学

出　　处：《陶瓷学报》1998年第4期200-203,共4页Journal of Ceramics

基　　金：浙江省自然基金;国家自然基金;浙江大学曹光彪高科技发展基金

摘　　要：本文采用相变增韧和层状复合协同强韧化Ａｌ２Ｏ３复合陶瓷，相变增韧制备出ＺＴＡ陶瓷，在此基础上，采用层状复合工艺，制备出ＺＴＡ／ＢＮ陶瓷。研究结果表明：相变增韧和层状复合协同强韧化Ａｌ２Ｏ３能基本保持陶瓷抗弯强度，冲击韧性提高了３７倍。In this work,approaches of phase transformation and lamination were used to strengthen and toughen alumina based composite ceramics.ZTA ceramic acted as a component of phase transformation toughening in the composites.Through a lamination process,ZTA/BN laminated composite ceramics were prepared. The results showed that the tensile strength of the ZTA/BN laminated composite ceramics was almost the same as that of the alumina ceramic,while the impact strength of the ZTA/BN increased to be 37 times higher than that of the alumina ceramic.

关 键 词：相变 增韧 层状复合 冲击韧性 氧化铝陶瓷 

分 类 号：TQ174.758[化学工程—陶瓷工业]