Electrophoretic deposition of MnCr2O4 coating for solid oxide fuel cell metallic interconnects
سال انتشار: 1393
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 382
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شناسه ملی سند علمی:
JR_IJHFC-1-1_003
تاریخ نمایه سازی: 21 فروردین 1397
چکیده مقاله:
In the present study, Mn-Cr spinel powder was synthesized through a solid state reaction. In the next step, the electrophoretic deposition (EPD) method was used to apply the MnCr2O4 spinel, as an oxidation-resistant layer on SUS 430 stainless steel with a potential of 300 V/cm. The coated and uncoated samples were then pre-sintered in air at 900°C for 3h, followed by cyclic oxidation at 800°C for 500h. In order to study the effect of reducing pre-sintering atmosphere on oxidation resistance, the coated specimen was pre-sintered in 5% H2/Ar at 900°C for 3h, followed by cyclic oxidation at 800°C for 500h. The results of the oxidation resistance tests revealed that the MnCr2O4 spinel coating improved the oxidation resistance of the uncoated sample; and also, the oxidation rate constant (Kp) for pre-sintered coating in 5% H2/Ar was nearly 14 times smaller than that of the one pre-sintered in air.
کلیدواژه ها:
نویسندگان
Reza Irankhah
Department of Ceramic, Materials and Energy Research Center, Tehran, ۱۴۱۵۵-۴۷۷۷, Iran
Babak Raeisi Dehkordi
Department of Ceramic, Materials and Energy Research Center, Tehran, ۱۴۱۵۵-۴۷۷۷, Iran
Amir Maghsoudipour
Department of Ceramic, Materials and Energy Research Center, Tehran, ۱۴۱۵۵-۴۷۷۷, Iran
Abdullah Irankhah
Hydrogen and Fuel Cell Research Lab, Chemical Engineering Department, University of Kashan, Kashan, ۸۷۳۱۷-۵۱۱۶۷, Iran