FABRICATION AND LUMINESCENT PERFORMANCE OF BaHfO3:Ce CERAMIC SCINTILLATOR
文献类型：期刊论文
| 作者 | Ma Weimin1; Wen Lei2; Shen Shifei1; Liu Jing1; Wang Huadong1; Yin Kai1 |
| 刊名 | ACTA METALLURGICA SINICA
 |
| 出版日期 | 2009-06-01 |
| 卷号 | 45期号:6页码:759-763 |
| 关键词 | BaHfO3 : Ce scintillator luminescent performance phase analysis microstructure sintering |
| ISSN号 | 0412-1961 |
| 通讯作者 | Ma Weimin(maweimin56@163.com) |
| 英文摘要 | 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. |
| 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 |
| 语种 | 英语 |
| WOS记录号 | WOS:000268359700020 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | Natural Science Foundation of Liaoning Province ; Scientific Technology Key Projects of Liaoning Province |
| 源URL | [http://ir.imr.ac.cn/handle/321006/95843]  |
| 专题 | 金属研究所_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. |
入库方式： OAI收割
来源：金属研究所
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