注凝成型微孔梯度陶瓷材料制备新工艺的研究(Ⅱ)  

Preparation of Micro-porous Gradient Ceramics by Gel-casting(Ⅱ)

作　　者：唐竹兴[1] 江培秋[1] 王树海[1] 陈达谦[1] 吴伯麟[2] 赵宏伟 

机构地区：[1]山东工业陶瓷研究设计院,淄博255031 [2]武汉理工大学,武汉430070 [3]安徽宿州建材局,宿州234000

出　　处：《硅酸盐通报》2001年第3期8-13,26,共7页Bulletin of the Chinese Ceramic Society

基　　金：山东省自然科学基金 ;青年基金资助项目!项目编号 :Q97F0 3 14 9

摘　　要：本文采用 90年代初发明的注凝成型技术制备微孔梯度陶瓷材料。在研究不同粒度Al2 O3 和高温粘结剂混合物浆料制备方法的基础上 ,进一步研究了固体含量、高温粘接剂、颗粒度等对制品的烧成收缩率、气孔率、强度、孔径及其分布和渗透性等物理性能的影响。研究发现固体含量在 40 %～ 5 0 % (体积分数 )的范围内对制品物理性能影响不大 ;Micro porous gradient ceramics were prepared by gel casting which was invented in the early 90’s.The method of producing slurries of low viscosity was studied,the influences of solid loading,high temperature sintering aid(solid and liquid)and sintering temperature on the shrinkage rate,strength,porosity,pore size,distribution,and permeability of products were studied.The effects of these parameters on porosity,average pore size,capillary,circuity and permeability were also studied.It is found that high temperature liquid sintering aid is better than solid one,and solid loading(40vol.%～50vol.%)of the slurry is not sensitive to improving physical performance of the products.

关 键 词：多孔陶瓷 微孔梯度 氧化铝 凝胶注膜 高温粘结剂 陶瓷材料 注凝成型 制备 工艺 

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