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J. Korean Ceram. Soc. > Volume 36(8); 1999 > Article
Journal of the Korean Ceramic Society 1999;36(8): 791.
전착법과 담금법에 의한 음극지지형 SOFC 지르코니아 전해질막 제조
김상우, 이병호, 손용배1, 송휴섭
한국과학기술연구원 세라믹공정연구센터
1한국과학기술연구원 세라믹공정연구센
Preparation of Electrolyte Thin Film for Anode Support Type Solid Oxide Fuel Cells by Electrophoretic Deposition and Dip-Coating
The preparation method of yttria-stabilized zirconia(YSZ) thin film for an anode support type solid oxide fuel cell(SOFC) by electrophoretic deposition(EPD) and dip-coating was studied. And the difference in both preparation method was investigated through basic understanding of processing parameters which may significantly affect weight microstruxcture and defect of film. In dip-coating the thickness of film increased with time until 30 s and then the weight of film decreased with time due to particle falling off from the coagulated film. In EPD although the weight of film increased with time and applied constant-current sagging of the film was observed when the applied current was less that 0.035 mA/cm2 and more than 120 s. Since YSZ thin film by EPD on porous substrate was dense smooth and homogeneous it was expected to be suitable for the electrolyte of an anode support type SOFC
Key words: SOFC, EPD, Dip-coating, Thin Film, YSZ
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