Preparation and Properties of Ce3+: BaF2 Transparent Ceramics by Vacuum Sintering

被引：9
|
作者：
Luo, Junming [1 ]
Ye, Lifang [1 ]
Xu, Jilin [1 ]
机构：
[1] Nanchang Hangkong Univ, Sch Mat Sci & Engn, Nanchang 330063, Peoples R China
来源：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2016年 / 16卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Chemical Coprecipitation; Ce3+: BaF2; Transparent Ceramic; Vacuum Sintering; Luminescence Property; LUMINESCENCE;
D O I：
10.1166/jnn.2016.11873
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Ce0.001Ba0.999F2.001 powders were prepared by a chemical coprecipitation method using Ba(NO3)(2), KF.2H(2)O and Ce(NO3)(3).6H(2)O as raw materials. Ce0.001Ba0.999F2.001 transparent ceramics were prepared by vacuum sintering. The results show that the Ce0.001Ba0.999F2.001 powders were blocky, and both powdered and sintered transparent ceramics were composed of BaF2 phases without the secondary phase. The maximum light transmittance of the Ce0.001Ba0.999F2.001 transparent ceramics reached 55%. The fracture morphology shows a cleavage fracture with a few micropores. The fluorescence spectra show that the Ce0.001Ba0.999F2.001 powders displayed emissions at 410 nm, 480 nm and 620 nm under 275 nm excitation. The Ce0.1Ba0.9F2.1 transparent ceramics displayed emissions at 450 nm and 620 nm under 294 nm excitation.
引用
收藏
页码：3985 / 3989
页数：5
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