Ce:Lu2SiO5闪烁陶瓷的放电等离子烧结与发光性能

doi:10.3724/SP.J.1077.2011.01210

无机材料学报 ›› 2011, Vol. 26 ›› Issue (11): 1210-1214.DOI: 10.3724/SP.J.1077.2011.01210

Ce:Lu₂SiO₅闪烁陶瓷的放电等离子烧结与发光性能

林挺, 许志斌, 邓莲芸, 任玉英, 施鹰, 谢建军

(上海大学材料科学与工程学院, 电子信息材料系, 上海 200072)

收稿日期:2010-12-19 修回日期:2011-04-07 出版日期:2011-11-20 网络出版日期:2011-11-11
作者简介:林挺(1984-), 男, 硕士研究生. E-mail: linting0808@yahoo.com.cn
基金资助:
国家自然科学基金大科学装置联合基金(11079026/A0804); 上海市基础重点研究项目(09JC1406500); 高性能陶瓷和超微结构国家重点实验室开放课题(SKL20109SIC); 上海市重点学科(S30107)

Spark Plasma Sintering of Ce3+:Lu2SiO5 Scintillation Ceramics and Its Luminescent Characteristics

LIN Ting, XU Zhi-Bin, DENG Lian-Yun, REN Yu-Ying, SHI Ying, XIE Jian-Jun

(Department of Electronics and Information Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China)

Received:2010-12-19 Revised:2011-04-07 Published:2011-11-20 Online:2011-11-11
Supported by:
National Natural Science Foundation of China (11079026/A0804); Basic Research Key Project of Shanghai Nunicipal (09JC1406500), Opening Project of State Key Lab of High Performance Ceramics and Superfine Microstructure (SKL201009SIC); Shanghai Leading Academic Disciplines (S30107)

摘要/Abstract

摘要： 以亚微米级单相铈离子掺杂硅酸镥(Ce:Lu₂SiO₅, LSO)发光粉体为原料, 采用放电等离子烧结(Spark Plasma Sintering)技术対多晶LSO闪烁陶瓷的制备方法进行了探索, 同时对其发光性能进行了研究. 在(1350℃/5min)的条件下实现了LSO粉体的快速致密化烧结, 研制出了具有良好发光性能的半透明多晶LSO闪烁陶瓷, 其相对密度达到理论密度的99.5%. 在360nm紫外激发条件下, 呈现位于380~600nm的宽峰发射行为. 其相对发光强度达到LSO闪烁单晶的75%, 发光衰减时间仅为9.67ns. 该材料有望成为一种新型的高光输出、快衰减多晶闪烁材料.

关键词: 闪烁陶瓷, 硅酸镥, 放电等离子烧结, 发光性能

Abstract: Cerium-doped lutetium orthosilicate (Ce:Lu₂SiO₅,LSO) scintillation ceramics were fabricated by using spark plasma sintering (SPS) technique starting from synthesized submicron polycrystalline LSO luminescent powder. Polycrystalline translucent LSO ceramics were rapidly densified under optimized sintering conditions of 1350℃/5min. The relative density of obtained translucent LSO ceramic reached 99.5% theoretically. Under excitation of 360nm, a broad emission peak was detected in the wavelength range of 380nm to 600nm. The relative emission intensity of obtained LSO ceramic attained 75% of LSO single crystal scintillator. The luminescent decay time was measured to be only 9.67ns. The good luminescent characteristics make LSO polycrystalline ceramic a promising scintillator candidate for radiation detection in future.

Key words: scintillation ceramics, lutetium orthosilicate, spark plasma sintering, luminescent characteristics

中图分类号:

TQ174

林挺, 许志斌, 邓莲芸, 任玉英, 施鹰, 谢建军. Ce:Lu₂SiO₅闪烁陶瓷的放电等离子烧结与发光性能[J]. 无机材料学报, 2011, 26(11): 1210-1214.

LIN Ting, XU Zhi-Bin, DENG Lian-Yun, REN Yu-Ying, SHI Ying, XIE Jian-Jun. Spark Plasma Sintering of Ce3+:Lu2SiO5 Scintillation Ceramics and Its Luminescent Characteristics[J]. Journal of Inorganic Materials, 2011, 26(11): 1210-1214.

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Ce:Lu₂SiO₅闪烁陶瓷的放电等离子烧结与发光性能

Spark Plasma Sintering of Ce3+:Lu2SiO5 Scintillation Ceramics and Its Luminescent Characteristics

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