کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1297489 1498403 2006 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Local structure analysis of YSZ by Y-89 MAS-NMR
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Local structure analysis of YSZ by Y-89 MAS-NMR
چکیده انگلیسی

The local coordination structure around Yttrium ions in yttria stabilized zirconia (YSZ) has been investigated by 89Y MAS-NMR. The NMR spectrum showed multiple peaks corresponding to yttrium ions in different coordination numbers. The compositional dependence of spectra was observed. Yttrium ions of different oxygen coordination number were quantified. The oxygen vacancy concentration around the cations was determined. It was found that the vacancies were distributed around Zirconium ions in lower Y2O3 concentrations, and the vacancy concentration located to Yttrium began increasing at concentrations above 10 mol% Y2O3. The local structure change was able to be directly observed by 89Y NMR measurements.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Ionics - Volume 177, Issues 19–25, 15 October 2006, Pages 1687–1690
نویسندگان
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