摘要
采用多相悬浮混合法制备纳米ＳｉＣ均匀分布在基质Ａｌ２Ｏ３中的纳米复合陶瓷。分别研究了加入分散剂ＰＭＡＡ－ＮＨ４后纳米ＳｉＣ和亚微米级Ａｌ２Ｏ３在水悬浮液中的分散稳定性，得出了两种单相水悬浮液高稳定、高分散的条件；并得出两相混合悬浮液均匀分散以及共同絮凝的条件，获得均分散的纳米复合陶瓷粉体。热压瓷体的力学性能得到明显改善。
Preparation of Al 2O 3-matrix ceramics with uniform dispersion of nano SiC particles was presented with two aqueous suspensions mixed.With PMAA-NH 4 as a dispersant,the conditions of high stibilized and dispersed SiC(n) suspension and Al 2O 3 suspension were investigated respectively.And the conditions of two solid phases uniform mixing and dispersion as well as flocculation in suspension were concluded.The mechanical properties of hot-pressed Al 2O 3-SiC(n) ceramic composite was increased.
出处
《陶瓷学报》
CAS
1999年第1期5-8,共4页
Journal of Ceramics
基金
国家自然科学基金
山东省科委资助项目
关键词
复合陶瓷
悬浮液
分散
制备
氧化铝
碳化硅
nano ceramic composite,Al 2O 3-SiC,suspension,dispersion,preparation
