Spinel coatings for UNS 430 stainless steel interconnects

被引：152

作者：

Bateni, M. Reza ^{[1
]}

Wei, Ping ^{[1
]}

Deng, Xiaohua ^{[1
]}

Petric, Anthony ^{[1
]}

机构：

[1] McMaster Univ, Dept Mat Sci & Engn, Hamilton, ON L8S 4L7, Canada

来源：

SURFACE & COATINGS TECHNOLOGY | 2007年 / 201卷 / 08期

基金：

加拿大自然科学与工程研究理事会;

关键词：

coatings; electroplating; Co2MnO4; Mn1.4Cu1.6O4; chromium evaporation; ferritic stainless steel;

D O I：

10.1016/j.surfcoat.2006.10.011

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

At the usual temperature of solid oxide fuel cell (SOFC) operation, ferritic stainless steels form electrically insulating or poorly conducting oxide scales, which can cause high internal resistance losses and chromium poisoning. In an effort to avoid this problem, we applied conductive copper manganite and cobalt manganite spinel coatings, with nominal Composition MnCo2O4 and Cu1.4Mn1.6O4, which were deposited on the surface of UNS 430 stainless steel by electroplating and subsequent air annealing. Microstructural evaluation indicated that the spinel layers inhibited outward diffusion of chromium. Moreover, excellent structural and thermal stability were observed after several thermal cycles at 750 degrees C and for up to 28 days, and the coating layers showed good adhesion to the substrate. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：4677 / 4684

页数：8

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