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스테인레스 430 소재의 전처리에 따른 고온 산화거동에 관한 연구
문민석(MinSeok Moon),우기도(KeeDo Woo),송준혁(JoonHyuk Song),오제하(JeHa Oh),강신재(ShinJae Kang) 한국자동차공학회 2009 한국자동차공학회 지부 학술대회 논문집 Vol.2009 No.10
Solid Oxide Fuel Cell (SOFCs) was high temperature operating Fuel cell system. Normally, this system operating temperature is approximately at 800~ 1000C. Fuel cell's efficiency was related with operating temperature. Operating temperature is increased that fuel cell efficiency is increased. Generally, SOFC was used to Bipolar plate material that Ceramic material with doped on the surface. Because SOFC was exposed high temperature atmosphere, ceramic material has stratified properties at the high temperature. At recent times, SOFC investigated focus on reduced operating temperature, IT SOFC (operation temperature at 600~800C) and LT SOFC (operation temperature at 400~600C). The aim of this study, apply to 430 stainless steels with different surface pre-treatment 3types, As-polished, As-Received and Sand Blast on the surface and no thermal satisfied coating treatment on the surface. 430 materials was exposure in the box furnace, at 800C with high temperature oxidation environment. And it observed to oxidation behavior with different exposures time. Oxidation behavior was analysis by SEM, EDS and XRD inspection.
중온용 SOFC 분리판에 적용하기 위한 스테인레스 304 소재의 전처리에 따른 고온 산화거동에 관한 연구
문민석(MinSeok Moon),우기도(KeeDo Woo),송준혁(JoonHyuk Song),김원태(WonTae Kim),오제하(JeHa Oh),강신재(ShinJae Kang) 한국자동차공학회 2008 한국자동차공학회 지부 학술대회 논문집 Vol.2008 No.11
Solid oxide fuel cells (SOFCs) have many attractive features for widespread applications for Generation system. Recently investigation for bipolar plate is focus on the Metallic bipolar plate. Solid Oxide Fuel Cell was operated to high temperature than other Fuel cell system, approximately at 800~1000C. Presently day was investigated reduced operation temperature at 600~800C, that is Intermediate temperature SOFC. Solid Oxide Fuel Cell has required of low cost and high-temperature corrosion resistance during the operation. In this case, apply to 304 stainless steels with different pre-surface treatment with no coating treatment on the surface, As-polished, As-Received and Sand Blast on the surface. And 304 was exposure to high temperature oxidation environment, in the box furnace at 800C, and review to oxidation behavior with each material during the different exposures time.(100hrs, 400hrs). Oxidation behavior was measured by SEM, EDS and XRD inspection.