Preparation of textured porous Al2O3 ceramics by slip casting in a strong magnetic field and its mechanical properties

被引：33

作者：

Yang, Zhigang ^{[1
]}

Yu, Jianbo ^{[1
]}

Li, Chuanjun ^{[1
]}

Zhong, Yunbo ^{[1
]}

Xuan, Weidong ^{[1
]}

Ren, Zhongming ^{[1
]}

Wang, Qiuliang ^{[2
]}

Dai, Yinming ^{[2
]}

Wang, Hui ^{[2
]}

机构：

[1] Shanghai Univ, Key Lab Modern Met & Mat Preparat, Shanghai 200072, Peoples R China

[2] Chinese Acad Sci, Inst Elect Engn, Beijing 100190, Peoples R China

来源：

CRYSTAL RESEARCH AND TECHNOLOGY | 2015年 / 50卷 / 08期

关键词：

porous Al2O3; texture; strong magnetic field; the bending strength; SINTERING SHRINKAGE; ALUMINA; FABRICATION; ORIENTATION; PARTICLES; GELATION; GROWTH; PORES;

D O I：

10.1002/crat.201500080

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The textured porous Al2O3 ceramics were prepared by slip casting in a strong magnetic field of 6 T and subsequently sintering. The c axis of Al2O3 grain was oriented parallel to the direction of the magnetic field and the textured porous microstructure with plate-shape grains was formed. The porosity of textured porous Al2O3 ceramic was 30.37% and the relative density reached 66.29% when the sintering temperature is 1600 degrees C. The textured porous Al2O3 green body showed the linear shrinkage anisotropy. The bending strength of the textured porous Al2O3 ceramics depended on the alignment direction of plate-shape grains.

引用

页码：645 / 653

页数：9

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