Gd2O2S:Tb scintillation ceramics fabricated from high sinterability nanopowders via hydrogen reduction
文献类型：期刊论文
| 作者 | Liu, Qiang; Pan, Hongming; Chen, Xiaopu; Li, Xiaoying; Liu, Xin; Li, Wei; Hu, Zewang; Zhang, Xing; Wu, Lexiang; Li, Jiang |
| 刊名 | OPTICAL MATERIALS
 |
| 出版日期 | 2019-08-01 |
| 卷号 | 94页码:299 |
| ISSN号 | 0925-3467 |
| 关键词 | Gadolinium oxysulfide Gd2O2S:Tb Scintillation ceramics Nanopowders |
| DOI | 10.1016/j.optmat.2019.05.022 |
| 文献子类 | Article |
| 英文摘要 | Crystallized Gd-2(OH)(4)SO4 center dot nH(2)O precursor was synthesized in hot water bath using oxide powders and concentrated sulfuric acid as raw materials. Calcining the precursor in air produced the intermediate product Gd2O2SO4 and Gd2O2S powders with high phase purity was obtained by hydrogen reduction. The Gd2O2S powders showed layered structure and severe agglomeration with S-BET = 6.321 m(2)/g. Using this powders, a two-step sintering method comprised of pre-sintering in vacuum and hot isostatic pressing post-treatment was introduced for the fabrication of Gd2O2S:Tb ceramics. The relative density increased from 95.7% in pre-sintered body to 99.2% in final ceramics. Densification processes and chemical homogeneity of the ceramics were discussed. Photoluminescence and X-ray excited luminescence of the final ceramics demonstrated a bright green emission centered at 545 nm due to the D-5(4)-F-7(5) transition of Tb3+. |
| WOS研究方向 | Materials Science ; Optics |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.sic.ac.cn/handle/331005/26922]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Liu, Qiang,Pan, Hongming,Chen, Xiaopu,et al. Gd2O2S:Tb scintillation ceramics fabricated from high sinterability nanopowders via hydrogen reduction[J]. OPTICAL MATERIALS,2019,94:299. |
| APA | Liu, Qiang.,Pan, Hongming.,Chen, Xiaopu.,Li, Xiaoying.,Liu, Xin.,...&Li, Jiang.(2019).Gd2O2S:Tb scintillation ceramics fabricated from high sinterability nanopowders via hydrogen reduction.OPTICAL MATERIALS,94,299. |
| MLA | Liu, Qiang,et al."Gd2O2S:Tb scintillation ceramics fabricated from high sinterability nanopowders via hydrogen reduction".OPTICAL MATERIALS 94(2019):299. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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