- Oxidation and Electrical Properties of (LaSr)(CrCo)3Coated STS-430 Steel by Plasma Spraying
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Chung-Hwan Lee, Kyeong-Tae Lim, Kyeong-Ho Baik
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J Korean Powder Metall Inst. 2009;16(3):185-190.
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DOI: https://doi.org/10.4150/KPMI.2009.16.3.185
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- Fe-Cr steels are the most promising candidate for interconnect in solid oxide fuel cells. In this study, an effective, dense and well adherent (LaSr)(CrCo)O_3 [LSCC] coating layer was produced onto 430 stainless steel (STS-430) by atmospheric plasma spraying and the oxidation behavior as well as electrical properties of the LSCC coated STS-430 were investigated. A significant oxidation of pristine STS-430 occurred at 800°C in air environment, leading to the formation of Cr_2O_3 and FeCr_2O_4 scale layer up to sim7µm after 1200h, and consequently increased an area specific resistance of 330;mOmegacdotcm2. Although the plasma sprayed LSCC coating contained the characteristic pore network, the coated samples presented apparent advantages in reducing oxidation growth of STS-430, resulting a decrease in oxide scale thickness of sim1µm at 800°C after 1200h. The area specific resistance of the LSCC coated STS-430 was much reduced to sim7;mOmegacdotcm2 after exposure at 800°C for 1200h, compared to that of the pristine STS-403.
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Citations
Citations to this article as recorded by  - Coatings Properties and Efficiency Performance of Cr-DLC Films Deposited by Hybrid Linear Ion Source for Hydraulic Gear Pump
Sun-Yong Cha, Wang-Ryeol Kim, Min-Suk Park, Se-Hun Kwon, Won-Sub Chung, Myung-Chang Kang
Journal of Korean Powder Metallurgy Institute.2010; 17(6): 456. CrossRef
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