Effect of alumina addition on the microstructure of plasma sprayed YSZ

被引：16
作者：
Brinkiene, K [1 ]
Kezelis, R [1 ]
机构：
[1] Lithuanian Energy Inst, LT-44403 Kaunas, Lithuania
来源：
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2005年 / 25卷 / 12期
关键词：
films; microstructure-final; ZrO2; fuel cells; plasma spraying;
D O I：
10.1016/j.jeurceramsoc.2005.03.027
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：
A plasma spray process for fabricating yttria-stabilized zirconia (YSZ) layers for SOFC was investigated. YSZ powders (CERAC, USA) < 44 mu m in diameter have been used to prepare plasma-sprayed ceramic films on the stainless steel sheets employing non-equilibrium plasma spray technology at atmospheric pressure. The effect of alumina addition from 1 to 5 wt.% on the properties of plasma sprayed YSZ films was investigated. Plasma sprayed zirconium oxide films have been characterized using scanning electron microscope (SEM) and X-ray diffractometer (XRD) for study of microstructure and phase analysis. The phase content and crystallite size of the films have been evaluated. The dependence of deposit characteristics on the concentration of additive was investigated and revealed that proper amount of alumina addition can improve the properties of plasma sprayed YSZ films. It was demonstrated how the started powder composition affects the density of the obtained films. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2181 / 2184
页数：4
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