| 고체산화물 연료전지용 금속접속자로의 적용을 위한 Fe-16Cr 페라이트 합금의 내산화막 코팅 |
| 이용진, 김상우1, 김긍호1, 이종호1, 안진호 |
한양대학교 재료공학과
1한국과학기술연구원 나노재료연구센터 |
| Protective Coatings for Application of Fe-l6Cr Ferritic Alloy as an Interconnector in SOFCs |
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| ABSTRACT |
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We studied oxidation behaviors of anti-oxidative Y-Cr oxide coated sol on ferritic steel for application of the Fe-Cr alloys as interconnectors of planar-type Solid Oxide Fuel Cells(SOFCs). In coated$YCrO_3$on the ferritic steel, the phases of $YCrO_3$,$Cr_2O_3$and $Mn_{1.5}Cr_{1.5}O_4$on the coated surface were detected, but iron base scales were not observed after oxidation at 80$0^{circ}C$ for 40 h. The Mn-Cr oxide scales were grown with oxidation by diffusing components in the ferritic steel from inner. The Log(ASR/T) value that expresses electrical resistance of coated$YCrO_3$on the ferritic steel was -4.57~$-4.70{omega}cm^2K^{-1}$, lower in comparison with the one of the uncoated ferritic steel,$-3.99{omega}cm^2K^{-1}$. This indicates the applicability of Fe-l6Cr alloy as interconnector materials for SOFCs. |
| Key words:
Metallic interconnector, SOFC, $YCrO_3$sol, Ferritic steel |
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