| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10625816 | Ceramics International | 2014 | 7 Pages |
Abstract
As one of the excellent colloidal ceramic forming methods for fabricating complex shaped ceramic components, gelcasting has been extensively investigated in the past two decades. In this article, a novel nontoxic system for gelcasting of ceramics was investigated using gellan gum as gelling agent. The rheological and gelling properties of gellan gum solutions with different types of cations and different concentrations of divalent magnesium ions were studied. Influences of concentration of gellan gum and solid loading of alumina suspension on the rheological properties and gelling properties of alumina suspension were investigated. The rheological properties of concentrated alumina suspension mixing with gellan gum and magnesium chloride were evaluated. Dense ceramics prepared by gellan gum gelation showed homogeneous microstructure and good mechanical properties.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Yanxue Zhang, Jie Xu, Yanan Qu, Xiaoqing Xi, Jinlong Yang,