Gelcasting of La0.6Sr0.4Co0.8Fe0.2O3-δ from oxide and carbonate powders

被引：11

作者：

Wang, HT ^{[1
]}

Liu, XQ ^{[1
]}

Zheng, H ^{[1
]}

Zheng, WJ ^{[1
]}

Meng, GY ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Mat Sci & Engn, Hefiei 230026, Anhui, Peoples R China

来源：

CERAMICS INTERNATIONAL | 1999年 / 25卷 / 02期

基金：

中国国家自然科学基金;

关键词：

perovskite; porous ceramic; preparation; gelcasting;

D O I：

10.1016/S0272-8842(98)00021-2

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Perovskite ceramics have been successfully prepared by gelcasting from oxide and carbonate powders, which is characterized by sintering homogeneous gelcast obtained from a dense suspension of insoluble or low-solubility metal-oxide precursors and organic monomers. Especially, the porous perovskite ceramics can be obtained by controlling sintering process. Gel-casting of La0.6Sr0.4Co0.8Fe0.2O3-delta was used to illustrate the process. The porosity, pore size, gas permeability and microstructure of the ceramics obtained were also characterized. This work shows that the obtained specimens are good enough for practical use and this preparation routine is very promising for preparing porous perovskite ceramics due to the specific advantages of simple processing. (C) 1999 Elsevier Science Limited and Techna S.r.l. All rights reserved.

引用

页码：177 / 181

页数：5

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