کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10568435 | 973429 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrical properties of heterogeneously doped yttria stabilized zirconia
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
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چکیده انگلیسی
This paper reports the effects of heterogeneously doped Al2O3 on the ionic conductivity of yttria stabilized zirconia (YSZ). At lower dopant concentration, grain growth occurred and the grain boundaries were re-formed. Subsequent increases in the dopant concentration decreased the grain size. The doping leads to the creation of space charge regions in the vicinity of the YSZ-Al2O3 boundaries, conducive to enhanced transport of oxygen ions. The presence of Al2O3 also leads to a blocking effect. The net result of the two antagonistic influences is small and reflected by a relatively minor influence on conductivity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 140, Issue 1, 10 January 2005, Pages 12-20
Journal: Journal of Power Sources - Volume 140, Issue 1, 10 January 2005, Pages 12-20
نویسندگان
Binod Kumar, Christina Chen, Chakrapani Varanasi, Joseph P. Fellner,