Constrained Sintering of Zirconia Films

被引：2

作者：

Atkinson, A. ^{[1
]}

Kim, J-S ^{[1
]}

Rudkin, R. A. ^{[1
]}

Taub, S. ^{[1
]}

Wang, X. ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Mat, London SW7 2AZ, England

来源：

SOLID OXIDE FUEL CELLS 11 (SOFC-XI) | 2009年 / 25卷 / 02期

关键词：

THIN-FILMS; CREEP; GROWTH; MODEL;

D O I：

10.1149/1.3205688

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In some planar SOFCs a thin film electrolyte is sintered onto a "rigid" substrate which constrains the film so that it can shrink only in one dimension, i.e. perpendicular to the substrate. The resulting stress and its effects on sintering kinetics and microstructure have been measured for screen printed YSZ films. The stress is in the range 0.5 to 3 MPa, depending on sintering temperature. The constraint slows the densification rate dramatically and results in porous defects that can compromise the gas-tightness of an electrolyte film.

引用

页码：1531 / 1540

页数：10