Microstructure of Fe-25Cr/(La, Ca)CrO3 composite interconnector in solid oxide fuel cell operating conditions

被引：41

作者：

Brylewski, T

Przybylski, K

Morgiel, J

机构：

[1] Stanislaw Staszic Univ Min & Met, Dept Solid State Chem, Fac Mat Sci & Ceram, PL-30059 Krakow, Poland

[2] Polish Acad Sci, Inst Met & Mat Sci, PL-30059 Krakow, Poland

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2003年 / 81卷 / 2-3期

关键词：

SOFC interconnect; microstructure; alloys; ceramics; multilayers; TEM; SEM;

D O I：

10.1016/S0254-0584(03)00041-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A 20 mum thick coating of La0.8Ca0.2CrO3 perovskite on Fe-25Cr steel substrates was obtained by the screen-printing method. The interaction of the (La, Ca)CrO3 coating with the steel substrate occur-ring during oxidation in air at 1073 K for 200h was investigated. The microstructure, phase and chemical analyses of the coating after oxidation were examined. It has been revealed that the metal substrate-coating interfacial zone has a two-layer structure built of mainly FeCr2O4 and LaCrO3, which provide the electric contacts between the interconnector material and the film, thus creating conditions for prolonged exploitation of solid oxide fuel cells. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：434 / 437

页数：4

共 5 条

[1] Application of Fe-16Cr ferritic alloy to interconnector for a solid oxide fuel cell [J].