کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1607594 | 1516240 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Systematic optimization of ball milling for highly transparent Yb:YAG ceramic using co-precipitated raw powders
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
Yb:YAG transparent ceramics were fabricated by vacuum sintering method using the co-precipitation synthesis of raw powders. These raw powders were mixed in ethanol doped with TEOS and ball milled for different time periods (0-20 h) and various solid contents of slurry (Sc = 7.8-38.5 wt%). The samples were vacuum sintered from 1350 °C to 1800 °C. Effects of ball-milling time and slurry concentrations on the morphology of powders, as well as densification, microstructure and transmittance of Yb:YAG ceramics were systematically evaluated. Results show that ball milling for 12 h can break the sintering neck of the particles and increase the optical transmittance to 81% at 1100 nm. For the Sc range of 38.5-20.3 wt%, decreasing slurry concentration improved the densification and in-line transmittance of Yb:YAG ceramics in the visible light region. When ball-milled for 12 h with 20.3 wt% slurry concentration, the Yb:YAG powders showed the most homogeneous particle distribution and highest densification rate, from which the ceramics prepared have the pore-free microstructure and the best transmittance. The highest optical transmittance of Yb:YAG ceramic sintered at 1750 °C for 15 h reaches up to 82% in the visible light region and 83.5% at 1100 nm, which is almost close to the theoretical transmittance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 653, 25 December 2015, Pages 552-560
Journal: Journal of Alloys and Compounds - Volume 653, 25 December 2015, Pages 552-560
نویسندگان
Xingtao Chen, Tiecheng Lu, Nian Wei, Zhongwen Lu, Lijia Chen, Qinghua Zhang, Gang Cheng, Jianqi Qi,