کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1495207 992929 2011 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ce3+ dopant segregation in Y3Al5O12 optical ceramics
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Ce3+ dopant segregation in Y3Al5O12 optical ceramics
چکیده انگلیسی

Ce3+-doped YAG garnet optical ceramic have been sintered at the Shanghai Institute of Ceramics in China to characterize dopant distribution in optical ceramics by combining optical spectroscopy and two spatially resolved techniques as imaging confocal microscopy and transmission electron microscopy. A strong Ce3+ segregation and spatial variations of content between grains and grain boundaries has been confirmed by quantitative data obtained by TEM microscopy. This observation is another evidence of the inhomogeneous Ce3+ distribution across grain and grain boundaries in optical ceramics comparable to that of Nd3+ ions in YAG ceramics. These results correlate well with low segregation coefficients of Nd3+ and Ce3+ observed in the garnet crystals grown from the melt and/or flux.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 33, Issue 5, March 2011, Pages 684–687
نویسندگان
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