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Title: Fabrication of (Mn,Co)3O4 Surface Coatings onto Alloy Substrates

Abstract

Ferritic stainless steels are promising candidates for IT-SOFC interconnect applications due to their low cost and resistance to oxidation at SOFC operating temperatures. However, several challenges remain, including long term electrical conductivity and surface stability under interconnect exposure conditions and chromia scale evaporation. One means of extending interconnect lifetime and improving performance is to apply a protective coating, such as (Mn,Co)3O4 spinel, to the cathode side of the interconnect. These coatings have proven effective in reducing scale growth kinetics and Cr volatility. This report describes several procedures developed at PNNL for fabricating (Mn,Co)3O4 spinel coatings onto ferritic stainless steels.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1031994
Report Number(s):
PNNL-16470
AA2530000; TRN: US201202%%115
DOE Contract Number:
AC05-76RL01830
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; 36 MATERIALS SCIENCE; ALLOYS; CATHODES; COATINGS; ELECTRIC CONDUCTIVITY; EVAPORATION; FABRICATION; KINETICS; LIFETIME; OXIDATION; PERFORMANCE; PROTECTIVE COATINGS; SOLID OXIDE FUEL CELLS; SPINELS; STABILITY; STAINLESS STEELS; SUBSTRATES; SURFACE COATING; VOLATILITY; solid oxide fuel cells; interconnects; coatings; spinel

Citation Formats

Yang, Zhenguo, Xia, Guanguang, Li, Xiaohong S., Singh, Prabhakar, and Stevenson, Jeffry W. Fabrication of (Mn,Co)3O4 Surface Coatings onto Alloy Substrates. United States: N. p., 2007. Web. doi:10.2172/1031994.
Yang, Zhenguo, Xia, Guanguang, Li, Xiaohong S., Singh, Prabhakar, & Stevenson, Jeffry W. Fabrication of (Mn,Co)3O4 Surface Coatings onto Alloy Substrates. United States. doi:10.2172/1031994.
Yang, Zhenguo, Xia, Guanguang, Li, Xiaohong S., Singh, Prabhakar, and Stevenson, Jeffry W. Mon . "Fabrication of (Mn,Co)3O4 Surface Coatings onto Alloy Substrates". United States. doi:10.2172/1031994. https://www.osti.gov/servlets/purl/1031994.
@article{osti_1031994,
title = {Fabrication of (Mn,Co)3O4 Surface Coatings onto Alloy Substrates},
author = {Yang, Zhenguo and Xia, Guanguang and Li, Xiaohong S. and Singh, Prabhakar and Stevenson, Jeffry W.},
abstractNote = {Ferritic stainless steels are promising candidates for IT-SOFC interconnect applications due to their low cost and resistance to oxidation at SOFC operating temperatures. However, several challenges remain, including long term electrical conductivity and surface stability under interconnect exposure conditions and chromia scale evaporation. One means of extending interconnect lifetime and improving performance is to apply a protective coating, such as (Mn,Co)3O4 spinel, to the cathode side of the interconnect. These coatings have proven effective in reducing scale growth kinetics and Cr volatility. This report describes several procedures developed at PNNL for fabricating (Mn,Co)3O4 spinel coatings onto ferritic stainless steels.},
doi = {10.2172/1031994},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Apr 30 00:00:00 EDT 2007},
month = {Mon Apr 30 00:00:00 EDT 2007}
}

Technical Report:

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