Combustion process in the synthesis of ZnO-Bi2O3

被引：36

作者：

de Sousa, VC ^{[1
]}

Morelli, MR ^{[1
]}

Kiminami, RHG ^{[1
]}

机构：

[1] Univ Fed Sao Carlos, Dept Mat Engn, BR-13565905 Sao Carlos, SP, Brazil

来源：

CERAMICS INTERNATIONAL | 2000年 / 26卷 / 05期

基金：

巴西圣保罗研究基金会;

关键词：

D O I：

10.1016/S0272-8842(99)00095-4

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：

Combustion synthesis of homogeneous ZnO-Bi2O3 powder mixtures has been investigated, with emphasis on the reaction mechanism. The reaction uses salts containing the zinc and bismuth ion (oxidizer) and a fuel. The self-sustaining reaction leads to high temperatures that promote oxide formation and crystallization in a short period of time. The resulting ZnO-Bi2O3 powders show characteristics that favor applications in the field of electronic ceramics, such as varistors. Such characteristics, namely particle morphology and crystallinity degree, were accessed by X-ray diffraction and scanning electron microscopy, showing that combustion synthesis is a promising alternative method to produce adequate powders for the manufacture of varistors. (C) 2000 Elsevier Science Ltd and Techna S.r.l. All rights reserved.

引用

页码：561 / 564

页数：4