کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10156019 | 1666369 | 2019 | 32 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fabrication of Nd:YAG transparent ceramics using powders synthesized by citrate sol-gel method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The highly transparent Nd:YAG ceramics were prepared by using powders synthesized by citrate sol-gel method. The citrate sol-gel method could avoid defects of the solid-phase reaction method and the liquid phase co-precipitation method in preparing Nd:YAG ceramic powders with the ratio of (Nd3+, Y3+):Al3+ equal to 3:5. The dried gel was the three dimensional net-shaped porous structure. When the dried gel was calcined at 500â¯Â°C in oxygen, pure YAG phase formed directly with no intermediate phases. The Nd:YAG powders calcined at 800â¯Â°C had maximum particle size near 500â¯nm. These powders were not equiaxed and there were dumbbell-like and annular grains. The highly compact Nd:YAG ceramics could be well sintered at 1750â¯Â°C for 12â¯h in vacuum atmosphere, and these sample had the average grain size about 3.8â¯Î¼m. The polished Nd:YAG ceramics was highly transparent, and the transmittances at 1064â¯nm and 400â¯nm were 83.4% and 74.2%, respectively. The fluorescence emission spectrum implied high possibility of realizing laser output at 1064â¯nm by pumping at 808â¯nm. Generally, the citrate sol-gel method was also a reliable choice for preparing high quality Nd:YAG transparent ceramics.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 772, 25 January 2019, Pages 751-759
Journal: Journal of Alloys and Compounds - Volume 772, 25 January 2019, Pages 751-759
نویسندگان
Shengquan Yu, Wei Jing, Mingjing Tang, Tao Xu, Wenlong Yin, Bin Kang,