中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Investigation on crystallization kinetics and microstructure of novel transparent glass ceramics containing Nd : NaYF4 nano-crystals

文献类型:期刊论文

作者F. Liu ; Y. S. Wang ; D. Q. Chen ; Y. L. Yu
刊名Materials Science and Engineering B-Solid State Materials for Advanced Technology
出版日期2007-01
卷号136期号:2-3页码:106-110
关键词oxyfluoride glass ceramic NaYF4 crystallization kinetics up-conversion luminescence sodium yttrium fluoride phosphors system green er3+ size
ISSN号0921-5107
中文摘要Nd3+-doped transparent oxyfluoride glass ceramics containing NaYF4 nano-crystals were prepared by melt-quenching and subsequent heating, and the crystallization kinetics of NaYF4 from the glass was investigated for the first time. Transmission electron microscopy (TEM) and X-ray diffraction (XRD) investigation reveal that spherical NaYF4 nano-crystals are distributed homogeneously among the glassy matrix for the sample doped with 1% Nd3+ and heated at 620 degrees C for 2 h. The kinetics study indicates that the mean apparent activation energy Ea and Avrami exponent n of the crystallization are 315 kJ/mol and 1.77, respectively, suggesting the crystallization being a diffusion-controlled growth process of particles with decreasing nucleation rate. The XRD data demonstrate a durative lattice expansion of cubic NaYF4 with the increasing of Nd3+ content in the sample, indicating the incorporation of Nd3+, into the crystallites which is further verified by the energy dispersive X-ray spectroscopy (EDS) and absorption spectra analyses of Nd3+, in glass and glass ceramic. (c) 2006 Elsevier B.V. All rights reserved.
语种英语
公开日期2013-04-01
源URL[http://ir.fjirsm.ac.cn/handle/350002/6470]  
专题福建物质结构研究所_中科院福建物质结构研究所_期刊论文
推荐引用方式
GB/T 7714
F. Liu,Y. S. Wang,D. Q. Chen,et al. Investigation on crystallization kinetics and microstructure of novel transparent glass ceramics containing Nd : NaYF4 nano-crystals[J]. Materials Science and Engineering B-Solid State Materials for Advanced Technology,2007,136(2-3):106-110.
APA F. Liu,Y. S. Wang,D. Q. Chen,&Y. L. Yu.(2007).Investigation on crystallization kinetics and microstructure of novel transparent glass ceramics containing Nd : NaYF4 nano-crystals.Materials Science and Engineering B-Solid State Materials for Advanced Technology,136(2-3),106-110.
MLA F. Liu,et al."Investigation on crystallization kinetics and microstructure of novel transparent glass ceramics containing Nd : NaYF4 nano-crystals".Materials Science and Engineering B-Solid State Materials for Advanced Technology 136.2-3(2007):106-110.

入库方式: OAI收割

来源:福建物质结构研究所

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