PREPARATION OF POROUS CERAMIC PARTICLES BY FREEZE-DRY PROCESSING

被引：3

作者：

YOKOTA, T

SUGAWARA, T

ICHIKAWA, Y

机构：

[1] Dept. of Chem. Eng., Yamagata Univ.

来源：

KAGAKU KOGAKU RONBUNSHU | 1992年 / 18卷 / 05期

关键词：

MATERIAL; POROUS MATERIAL; POROUS CERAMIC PARTICLE; POROUS CERAMICS; FREEZE DRYING; PORE CONTROL;

D O I：

10.1252/kakoronbunshu.18.752

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Porous alumina and magnesia particles were prepared by freeze-dry processing. Freeze dried particles from an aqueous metal salt solution have many pores formed by ice sublimation traces. The particles were calcined to form oxide particles, which still bad a porous configuration. When the porous calcined particles were committed to a furnace they became porous ceramic particles. Various factors such as feed concentration of a metal solution, freezing temperature, firing temperature and hold time were investigated to determine how they affect the pore configuration of the particles. The relationships between compressive strength and porosity and between specific surface area and porosity were clarified.

引用

页码：752 / 756

页数：5