FABRICATION AND LUMINESCENT PERFORMANCE OF BaHfO3:Ce CERAMIC SCINTILLATOR

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	FABRICATION AND LUMINESCENT PERFORMANCE OF BaHfO3:Ce CERAMIC SCINTILLATOR
	Ma Weimin 1; Wen Lei 2; Shen Shifei 1; Liu Jing 1; Wang Huadong 1; Yin Kai 1
通讯作者	Ma Weimin(maweimin56@163.com)
	2009-06-01
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	45 期号:6 页码:759-763
摘要	BaHfO3 ceramic scintillator dopped by 0.3%Ce3+ (molar fraction) was prepared by co-precipitation method. XRD, TG-DSC and TEM were employed to measure the phase transformation and grain morphology of BaHfO3 : Ce. The densification and microstructure of BaHfO3 : Ce ceramic scintillator prepared in different sintering atmospheres were studied. Results show that there are three stages during the crystallization of the precursor. The near spherical BaHfO3 : Ce nanoparticles can be obtained after calcining at 900 degrees C for 2 h, and the grain size is about 15 nm. The densification and microstructure of BaHfO3 : Ce have obvious differences under sintering in air and in vacuum. The fully densified sample was obtained by vacuum sintering at 1750 degrees C for 1.5 h, and the grain size is about 40-50 mu m. The sample prepared by sintering in air has the uneven grain size distribution. 380-420 nm purple and 420-450 nm blue bands appear in the wavelength lambda=530 nm excitation spectra of the vacuum sintering scintillator and the as-synthesized powders, respectively. And the peaks in the excitation spectra are at 391, 398 and 445 nm corresponding of 4f -> 5d energy level transition of Ce3+. A comparison for the emission spectra prepared by vacuum sintering shows that the ceramic scintillator has the stronger luminescence intensity than the as-synthesized powders.
关键词	BaHfO3 : Ce scintillator luminescent performance phase analysis microstructure sintering
资助者	Natural Science Foundation of Liaoning Province ; Scientific Technology Key Projects of Liaoning Province
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of Liaoning Province[20062001] ; Scientific Technology Key Projects of Liaoning Province[2005222009]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000268359700020
出版者	SCIENCE PRESS
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/95844
专题	中国科学院金属研究所
通讯作者	Ma Weimin
作者单位	1.Shenyang Univ Chem Technol, Sch Mat Sci & Engn, Shenyang 110142, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Ma Weimin,Wen Lei,Shen Shifei,et al. FABRICATION AND LUMINESCENT PERFORMANCE OF BaHfO3:Ce CERAMIC SCINTILLATOR[J]. ACTA METALLURGICA SINICA,2009,45(6):759-763.
APA	Ma Weimin,Wen Lei,Shen Shifei,Liu Jing,Wang Huadong,&Yin Kai.(2009).FABRICATION AND LUMINESCENT PERFORMANCE OF BaHfO3:Ce CERAMIC SCINTILLATOR.ACTA METALLURGICA SINICA,45(6),759-763.
MLA	Ma Weimin,et al."FABRICATION AND LUMINESCENT PERFORMANCE OF BaHfO3:Ce CERAMIC SCINTILLATOR".ACTA METALLURGICA SINICA 45.6(2009):759-763.