Enhanced Sintering Rate of Zirconia (3Y-TZP) Through the Effect of a Weak dc Electric Field on Grain Growth

被引：135

作者：

Yang, Di ^{[1
,2
]}

Raj, Rishi ^{[1
]}

Conrad, Hans ^{[2
]}

机构：

[1] Univ Colorado, Dept Mech Engn, Boulder, CO 80309 USA

[2] N Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2010年 / 93卷 / 10期

关键词：

SUPERPLASTIC DEFORMATION; STABILIZED ZIRCONIA; CONDUCTIVITY; ALUMINA; YTTRIA;

D O I：

10.1111/j.1551-2916.2010.03905.x

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：

We show, for the first time, that a dc electric field of 20 V/cm shifts the densification curve to a lower temperature in constant heating rate experiments with yttria-stabilized tetragonal zirconia powder (3Y-TZP). The enhanced sintering rate is ascribed, at least in part, to the reduced rate of grain growth under the applied field, consistent with earlier experiments on the influence of such fields on grain size in superplastic deformation and isothermal grain growth in zirconia polycrystals.

引用

页码：2935 / 2937

页数：3

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