| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10626693 | Ceramics International | 2005 | 4 Pages |
Abstract
The synthesis of beta-alumina powder by microwave heating of the precipitate obtained through solution-precipitate techniques was described. A homogeneous mixture of Al2(SO4)3·18H2O and Na2SO4·10H2O was precipitated by dropping the mixed solution of kaolin-derived aluminum sulfate and sodium hydroxide into ethanol with agitation by stirring. The precipitates were calcined at various temperatures for 1 h under conventional and microwave heating process for obtaining the beta-alumina powder with the structure consisting of β- and βâ³-alumina phases with a larger amount of βâ³-alumina phase. The amount of βâ³-alumina phase in the microwave-calcined samples was larger than that in the conventionally calcined samples.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Hee Chan Park, Yoon Bok Lee, Sang Geun Lee, Chang Hee Lee, Ji Kyung Kim, Seong Soo Hong, Seong Soo Park,