Effect of powder milling and dopant addition on the current-voltage characteristics of SnO2-based ceramics

被引：1

作者：

Lacerda, W ^{[1
]}

Las, WC ^{[1
]}

Cilense, M ^{[1
]}

Varela, JA ^{[1
]}

机构：

[1] UNESP, Inst Quim, Lab Interdisciplinar Ceram, BR-14800900 Araraquara, SP, Brazil

来源：

ADVANCED POWDER TECHNOLOGY II | 2001年 / 189-1卷

关键词：

chromium; copper; manganese; milling; tin dioxide; varistors;

D O I：

10.4028/www.scientific.net/KEM.189-191.138

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：

Non-linear electrical properties of SnO2-based ceramics were investigated as a function of powder agglomeration condition and as a function of dopant addition. All doped powders presented a single phase, cassiterite, as evidenced by X-ray diffraction analysis. The effect of milling was quite evident, with non-milled powder showing higher agglomerated particle size than milled powder. Cr addition seemed to increase the non-linear coefficient. Cu and Mn rendered dense ceramics, but alpha values for systems with Mn were higher than for systems with Cu.

引用

页码：138 / 143

页数：6

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