The influences of stoichiometry on the sintering behavior, optical and scintillation properties of Pr:LuAG ceramics

doi:10.1016/j.jeurceramsoc.2018.05.014

	The influences of stoichiometry on the sintering behavior, optical and scintillation properties of Pr:LuAG ceramics
	Hu, Zewang 1; Chen, Xiaopu 1; Dai, Jiawei 1; Chen, Haohong ; Shi, Yun ; Kou, Huamin ; Xie, Tengfei ; Yang, Zhaoxiang ; Wu, Lexiang ; Pan, Yubai 2
刊名	JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
	2018
卷号	38 期号:12 页码:4252
关键词	Pr:LuAG Ceramic scintillator Stoichiometry Impurity drag effect Air annealing
ISSN号	0955-2219
DOI	10.1016/j.jeurceramsoc.2018.05.014
英文摘要	Sintering aids may enter the host lattice, create defects, and seriously deteriorate the scintillation properties of ceramic scintillators. In this study, the 0.3at%Pr:LuAG ceramics with different excess of Lu were fabricated by the solid-state reactive sintering without aids. The influences of stoichiometry on the sintering behaviors, optical and scintillation properties of the ceramics are systematically studied. The results show that the stoichiometric ceramics experience an abnormal grain growth during sintering. The Lu excess can restrain the abnormal grain growth of the ceramics because of the impurity drag effect. The excess Al2O3 as optical scattering centers, can also pin in the grain boundary to limit the fast migration of the grain boundaries. The light yield value of the assintered ceramics decreases with the increase of Lu content. After air-annealing, the ceramics with appropriate excess of Lu can achieve better optical quality and higher light yield compared to the stoichiometric Pr:LuAG ceramics.
学科主题	Materials Science, Ceramics
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000436217600011
资助机构	This work was supported by the National key R&D Program of China (2017YFB0310500 and 2016YFB0701004), by the National Natural Science Foundation of China (Grants No. 61775226, 61675221 and 61475175), and by the Czech Science Foundation project (Grant No. 16-15569S). Support of the ASCR-CAS bilateral mobility project is also acknowledged. ; This work was supported by the National key R&D Program of China (2017YFB0310500 and 2016YFB0701004), by the National Natural Science Foundation of China (Grants No. 61775226, 61675221 and 61475175), and by the Czech Science Foundation project (Grant No. 16-15569S). Support of the ASCR-CAS bilateral mobility project is also acknowledged.
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/24701]
专题	中国科学院上海硅酸盐研究所
作者单位	1.Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Transparent Optofunct Inorgan Mat, Shanghai 201899, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Shanghai Normal Univ, Dept Phys, Shanghai 200234, Peoples R China 4.Czech Acad Sci, Inst Phys, Prague 16200, Czech Republic
推荐引用方式 GB/T 7714	Hu, Zewang,Chen, Xiaopu,Dai, Jiawei,et al. The influences of stoichiometry on the sintering behavior, optical and scintillation properties of Pr:LuAG ceramics[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2018,38(12):4252, 4259.
APA	Hu, Zewang.,Chen, Xiaopu.,Dai, Jiawei.,Chen, Haohong.,Shi, Yun.,...&Li, Jiang.(2018).The influences of stoichiometry on the sintering behavior, optical and scintillation properties of Pr:LuAG ceramics.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,38(12),4252.
MLA	Hu, Zewang,et al."The influences of stoichiometry on the sintering behavior, optical and scintillation properties of Pr:LuAG ceramics".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 38.12(2018):4252.