Effect of ZrO2 additions on sintering of SnO2-based ceramics

被引：9

作者：

Maître, A ^{[1
]}

Beyssen, D ^{[1
]}

Podor, R ^{[1
]}

机构：

[1] Univ Nancy 1, CNRS, Lab Chim Solide Mineral, UMR 7555, F-54506 Vandoeuvre Les Nancy, France

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2004年 / 24卷 / 10-11期

关键词：

diffusion; point defects; sintering; SnO2; ZrO2;

D O I：

10.1016/j.jeurceramsoc.2003.11.009

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 effect of zirconia additions on sintering of CoO doped tin dioxide has been investigated in the temperature range 11001250 C. A first study showed that the substitution of tin by zirconium reduces significantly the volatilisation rate of SnO2 for temperatures greater than 1400 degreesC. It appeared that the zirconium content increase inhibits the densification kinetics of SnO2-based ceramics. Indeed, the relative density did not exceed 93% for a Zr content lower than 6 mol% in the Sn(1-x)ZrxO2 solid solution. This negative effect can be imputed to the elastic distortions caused by the introduction of Zr in the tin dioxide lattice. So, the diffusion rate of point defects such as oxygen or cobalt ions is lowered. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：3111 / 3118

页数：8

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