ZTA复相陶瓷凝胶注模成形工艺的研究  

Studies on Gelcasting of Zirconia Alumina Ceramic

作　　者：朱海涛[1] 张灿英[1] 杨静漪[1] 侯耀永[1] 

机构地区：[1]青岛化工学院高技术陶瓷研究室,青岛266042

出　　处：《山东陶瓷》1999年第3期1-7,共7页Shandong Ceramics

基　　金：国家自然科学基金;化学工业科技研究基金

摘　　要：本文研究了 Ｚｒ Ｏ２（３ Ｙ） Ａｌ２ Ｏ３ 复相陶瓷的凝胶注模成形工艺，着重研究了低粘度高固相体积分数浓悬浮体的制备。利用自制分散剂 Ｍ Ｎ 对 Ｚｒ Ｏ２（３ Ｙ） 、α Ａｌ２ Ｏ３ 进行表面吸附修饰改性，通过 Ｍ Ｎ 对两种颗粒的电空间稳定机制，在ｐ Ｈ ＝ ９５ 及最佳分散剂用量条件下可制得低粘度高固相量的 Ｚｒ Ｏ２（３ Ｙ） Ａｌ２ Ｏ３ 复相陶瓷悬浮体。In the paper,Gelcasting of binary zirconia alumina composites ceramic was further studied.Special emphasis was placed on the preparation of concentrated suspension with low viscosity and high solid volume loading.Stability of aqueous zirconia alumina suspensions with dispersant MN was studied as a function of pH That the surface modification of alumina and zirconia by adsorption of MN on them made it possible to prepare the binary zirconia alumina suspension with low viscosity and high solid volume loading.Using optimum amount of dispersant MN at pH9 5,the zirconia alumina suspension with low viscosity and high solid was made by electrosteric stabilization mechanism

关 键 词：凝胶注模 ZTA 成形 工艺 陶瓷 复合陶瓷 模具 

分 类 号：TQ174.62[化学工程—陶瓷工业] TQ174.758[化学工程—硅酸盐工业]