کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10625683 989632 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fabrication of transparent neodymium-doped yttrium aluminum garnet ceramics by high solid loading suspensions
ترجمه فارسی عنوان
تولید سرامیک های گارنت آلومینیوم یتیم شفاف نئودیمیوم با استفاده از سوسپانسیون های باالی جامد
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی
Dense neodymium-doped yttrium aluminum garnet (Nd:YAG) transparent ceramic was obtained by slip casting and solid-state reaction. The colloidal behavior of the aqueous suspensions of neodymia, yttria, and alumina mixed powders using Dispex A as dispersant was investigated. The variation in zeta potential due to pH alteration was studied. The isoelectric point (IEP) was at pH 4.5 and 4 for the specimens with and without Dispex A, respectively. The optimal dispersion conditions were achieved for the suspensions at pH 9.6 with 0.4 wt% Dispex A. The green body prepared by slip casting was vacuum sintered from 1200 °C to 1750 °C. The grain size of the sintered body increased, and the pore size decreased with increasing sintering temperature. Pore-free Nd:YAG transparent ceramic with a grain size of 5-10 μm was obtained by sintering at 1750 °C for 10 h. The in-line transmittance of the annealed specimen reached 80.8% at 1064 nm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 39, Issue 7, September 2013, Pages 7921-7926
نویسندگان
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