کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1296803 1498362 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of alumina additions in YSZ on the microstructure and degradation of the LSM–YSZ interface
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Effect of alumina additions in YSZ on the microstructure and degradation of the LSM–YSZ interface
چکیده انگلیسی

The cathode–electrolyte interface in a solid oxide fuel cell is examined to understand why premature delamination is observed in alumina substituted YSZ electrolyte. From XRD, SEM and TEM observations it was concluded that after high temperature sintering a tetragonal (Mn,Al)3O4 forms at the interface, which during prolonged fuel cell operation forms a cubic (Mn,Al)3O4 phase. This transformation is associated with volume decrease creating voids which ultimately weaken the cathode–electrolyte interface sufficiently for the cathode layer to delaminate off the YSZ–Al2O3 electrolyte.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Ionics - Volume 180, Issues 14–16, 25 June 2009, Pages 984–989
نویسندگان
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