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Title: Protective Ceramic Coatings for Solid Oxide Fuel Cell (SOFC) Balance-of-Plant Components

Abstract

Solid oxide fuel cells (SOFCs) have the potential to meet the growing need for electrical power generation if the cost per megawatt can be further reduced. Currently, SOFC stacks are replaced too frequently to be cost competitive. SOFC service life can be extended by preventing chromium- (Cr-) bearing species from evaporating from the interior surfaces of balance of plant (BOP) components and poisoning the cathode to increase the lifetime. We have developed yttria-stabilized zirconia (YSZ) and aluminum oxide- (Al 2 O 3 -) modified sol-gel paints or inks for coating BOP components. 430 stainless steel (430SS) substrates with three surface conditions were coated with the 0.8–1.5  µ m thick YSZ and Al 2 O 3 paints. The coated 430SS samples were tested for thermal cycling resistance, thermal soak, and Cr evaporation. Thermal soak and thermal cycling test results show promise for the YSZ-coated 430SS substrates. The Cr evaporation test of a coated substrate showed a 51% reduction in Cr generation, when compared with a bare substrate.

Authors:
 [1];  [2];  [3];  [3]; ORCiD logo [1]
  1. InnoSense LLC, Torrance, CA (United States)
  2. Univ. of Connecticut, Storrs, CT (United States). Dept. of Materials Science & Engineering
  3. Univ. of Alabama at Birmingham, Birmingham, AL (United States). Dept. of Materials Science & Engineering
Publication Date:
Research Org.:
InnoSense LLC, Torrance, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24)
OSTI Identifier:
1477517
Alternate Identifier(s):
OSTI ID: 1483364
Grant/Contract Number:  
SC0013879
Resource Type:
Journal Article: Published Article
Journal Name:
Advances in Materials Science and Engineering
Additional Journal Information:
Journal Volume: 2018; Journal ID: ISSN 1687-8434
Publisher:
Hindawi
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Winter, Raymond L., Singh, Prabhakar, King, Mark K., Mahapatra, Manoj K., and Sampathkumaran, Uma. Protective Ceramic Coatings for Solid Oxide Fuel Cell (SOFC) Balance-of-Plant Components. United States: N. p., 2018. Web. doi:10.1155/2018/9121462.
Winter, Raymond L., Singh, Prabhakar, King, Mark K., Mahapatra, Manoj K., & Sampathkumaran, Uma. Protective Ceramic Coatings for Solid Oxide Fuel Cell (SOFC) Balance-of-Plant Components. United States. doi:10.1155/2018/9121462.
Winter, Raymond L., Singh, Prabhakar, King, Mark K., Mahapatra, Manoj K., and Sampathkumaran, Uma. Sun . "Protective Ceramic Coatings for Solid Oxide Fuel Cell (SOFC) Balance-of-Plant Components". United States. doi:10.1155/2018/9121462.
@article{osti_1477517,
title = {Protective Ceramic Coatings for Solid Oxide Fuel Cell (SOFC) Balance-of-Plant Components},
author = {Winter, Raymond L. and Singh, Prabhakar and King, Mark K. and Mahapatra, Manoj K. and Sampathkumaran, Uma},
abstractNote = {Solid oxide fuel cells (SOFCs) have the potential to meet the growing need for electrical power generation if the cost per megawatt can be further reduced. Currently, SOFC stacks are replaced too frequently to be cost competitive. SOFC service life can be extended by preventing chromium- (Cr-) bearing species from evaporating from the interior surfaces of balance of plant (BOP) components and poisoning the cathode to increase the lifetime. We have developed yttria-stabilized zirconia (YSZ) and aluminum oxide- (Al 2 O 3 -) modified sol-gel paints or inks for coating BOP components. 430 stainless steel (430SS) substrates with three surface conditions were coated with the 0.8–1.5  µ m thick YSZ and Al 2 O 3 paints. The coated 430SS samples were tested for thermal cycling resistance, thermal soak, and Cr evaporation. Thermal soak and thermal cycling test results show promise for the YSZ-coated 430SS substrates. The Cr evaporation test of a coated substrate showed a 51% reduction in Cr generation, when compared with a bare substrate.},
doi = {10.1155/2018/9121462},
journal = {Advances in Materials Science and Engineering},
issn = {1687-8434},
number = ,
volume = 2018,
place = {United States},
year = {2018},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1155/2018/9121462

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