摘要
湿法成型方法在降低粉体团聚，改善素坯显微结构均匀性方面有着明显的优势．本工作研究了二元体系Ｙ－ＴＺＰ／α－Ａｌ２Ｏ３形成稳定浆料的流变性质，在制备了具有较高固体含量的浆料基础上进行了凝胶注模成型．结果表明，在ｐＨ值为９—１０的范围内可以制备出固体体积分数分别为５０％和４５％的以α－Ａｌ２Ｏ３为主或以Ｙ－ＴＺＰ为主的浆料．尽管每一种组分都对复合体系的流变性产生影响，但具有较低稳定程度的氧化锆起决定作用，在富含氧化锆的体系中，浆料的粘度和屈服力都大大提高．
The wet forming method has great advantage in reducing the agglomerates and improving the homogeneity of ceramics specimens. The rheological properties of binary slurries formed with Y-TZP and α -Al 2O 3 were investigated. A solid content as high as 50% in volume for gelcasting could be obtained in the pH range of 9—10. The difference in rheological properties of single system and binary system was compared. The less stable suspension of Y-TZP played an important role in the mixture.
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
1998年第5期662-667,共6页
Journal of The Chinese Ceramic Society
基金
中国科学院上海硅酸盐研究所高性能陶瓷与超微结构国家重点实验室资助
