کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9761721 | 1498426 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structure and transport property of manganese-chromium-iron oxide as a main compound in oxide scales of alloy interconnects for SOFCs
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
The phase relation, diffusivity, and electrical conductivity are investigated for powders and dense crystalline bodies of manganese-chromium-iron oxides with spinel structure which is regarded as main compounds in the oxide scale of some ferritic alloy interconnects of solid oxide fuel cells (SOFC). The lattice parameter of MnCr2O4-based spinel oxide increased with iron substitution for chromium at B-site. The iron substitution greatly improved the electrical conductivity. The fast cation diffusion was observed for iron substituted samples forming an iron-rich layer in the vicinity of surface. The compatibility of some ferritic alloys as SOFC interconnects is evaluated by using conductivity data of Mn-Cr-Fe spinels.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Ionics - Volume 176, Issues 7â8, 28 February 2005, Pages 681-686
Journal: Solid State Ionics - Volume 176, Issues 7â8, 28 February 2005, Pages 681-686
نویسندگان
Natsuko Sakai, Teruhisa Horita, Yue Ping Xiong, Katsuhiko Yamaji, Haruo Kishimoto, Manuel E. Brito, Harumi Yokokawa, Toshio Maruyama,