This paper describes an initial development of oxidation resistant coatings for SOFC (solid oxide fuel cell) interconnectors using LaSrCoFe oxide (LSCF, (La0.6Sr0.4)(Fe0.8Co0.2)O3). The process involved the development of hermetic coatings using a HVOF (high velocity oxy-fuel) spray process, specifically a θ-gun spray process. The X-ray diffraction of the powder and the coating is analyzed at first. To get the hermetic coating, numerous process parameters were chosen using design of experiments (DOE). The hermeticity of the coating was tested using a salt spray test. After these tests, a hermetic LSCF coatings was obtained with virtually no interconnecting pores.

design of experiments, hermetic coatings, high-velocity oxyfuel spray coating, lanthanum-strontium-cobalt-iron oxides, oxidation resistance, solid oxide fuel cells, X-ray diffraction
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Copyright © 2006 ASM International. All rights reserved.
2006
ASM International
Topics
Solid oxide fuel cells Alloy powder High-velocity oxyfuel spray coating Oxidation resistance Design of experiments X-ray diffraction
Issue Section:
Applications and Case Studies
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