Gelation forming of ceramic compacts using agarose

被引：35

作者：

Xie, ZP ^{[1
]}

Yang, JL ^{[1
]}

Huang, D ^{[1
]}

Chen, YL ^{[1
]}

Huang, Y ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

来源：

BRITISH CERAMIC TRANSACTIONS | 1999年 / 98卷 / 02期

关键词：

D O I：

10.1179/096797899680246

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：

The development of a cast forming process for ceramics based on agarose gelation is described and the properties of green and sintered bodies are presented. For this process, a warm alumina slurry containing more than 50 vol.-% solids loaning and similar to 1 wt-% agarose binder (Al2O3 basis) is cast into a relatively cold, nonporous mould, resulting in a tough green body formed by gelation (37 degrees C) of the agarose molecules. The green compacts show uniform density distribution, with precise dimensions and very smooth surfaces. After drying, they can be sintered directly without special binder burn out procedures. Complex ceramic parts with thick and thin cross-sections can be formed. The process is illustrated for the preparation of a turbine rotor component.

引用

页码：58 / 61

页数：4