کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1475098 991108 2012 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Co-precipitation synthesis route to yttrium aluminum garnet (YAG) transparent ceramics
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Co-precipitation synthesis route to yttrium aluminum garnet (YAG) transparent ceramics
چکیده انگلیسی

Yttrium aluminum garnet (YAG) precursor was synthesized via a coprecipitation method with aluminum nitrate and yttrium nitrate as raw materials, using ammonium hydrogen carbonate (AHC) as the precipitant. Fine and low-agglomerated YAG powder was obtained by calcining the precursor at 1200 °C. The primary crystallites were measured to be ∼120 nm in size and weakly agglomerated to a particle size of ∼500 nm, indicating a high degree of sinterability. With 0.5 wt% tetraethyl orthosilicate (TEOS) and 0.1 wt% magnesia as sintering aids, transparent YAG ceramics were fabricated by vacuum sintering at 1730–1790 °C for various hours. The influences of sintering temperature and holding time on the microstructure and transmittance of YAG ceramics were discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 32, Issue 11, August 2012, Pages 2971–2979
نویسندگان
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