EFFECT OF ALUMINA ON SINTERING BEHAVIOR AND ELECTRICAL-CONDUCTIVITY OF HIGH-PURITY YTTRIA-STABILIZED ZIRCONIA

被引：43
|
作者：
MORI, M
YOSHIKAWA, M
ITOH, H
ABE, T
机构：
[1] Chemical Power Generation Group, Chemical Energy Engineering Department, Central Research Institute of Electric Power Industry, Yokosuka, Kanagawa, 240-01
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1994年 / 77卷 / 08期
关键词：
D O I：
10.1111/j.1151-2916.1994.tb07124.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：
The sintering behavior and electrical conductivity of high-purity 8-mol% Y2O3-stabilized ZrO2 (8YSZ) with Al2O3 additions were investigated. The addition of 1 wt% Al2O3 to 8YSZ provided dense, sintered samples with 94% relative density at 1400-degrees-C without a holding time. Addition of 1 wt% SiO2 enhanced the sinterability of 8YSZ. Na2O addition of 0.1 wt% remarkably lowered it. Electrical conductivity at 1000-degrees-C in air increased slightly with increased Al2O3 content up to 1 wt% and then monotonously decreased. 8YSZ with 1 wt% Al2O3 showed the maximum conductivity of 0.16 S/cm at 1000-degrees-C.
引用
收藏
页码：2217 / 2219
页数：3
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