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真空烧结技术制备Er:(Yb1–xLax)2O3 透明陶瓷
作者:杨晓敏 朱忠丽 
单位:长春理工大学化学与环境工程学院 长春 130022 
关键词:冷等静压-真空烧结 掺铒氧化镧镱陶瓷 烧结工艺 吸收光谱 上转换发射光谱 
分类号:TQ129
出版年,卷(期):页码:2015,43(9):1234-1239
DOI:10.14062/j.issn.0454-5648.2015.09.10
摘要:

 采用冷等静压-真空烧结技术制备尺寸为?10 mm×l mm Er:(Yb1–xLax)2O3 陶瓷。通过分析粉体的X 射线衍射谱和陶瓷的扫描电子显微镜照片,确定陶瓷制备条件为:在1 750 烧结20 h 和在1 450 退火20 h。陶瓷样品在可见光波段透过率为50%左右,在近红外波段透过率最高达到82%。测试了陶瓷的吸收光谱、发射光谱和上转换发射光谱,并探讨了上转换发光机制。结果表明:陶瓷在977 nm 处有强吸收,发射最强峰在1 545 nm 处,上转换发出较强的绿光(542 nm)和蓝光(484 nm)

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 Er:(Yb1–xLax)2O3 transparent ceramic sample with the size of ?10 mm×l mm was fabricated by a cold isostaticpressing-vacuum sintering technique. The ceramic sample was characterized by X-ray diffraction and scanning electronmicroscopy. The sample could be prepared under optimal conditions (i.e., sintering temperature of 1 750 and sintering durationof 20 h, annealing temperature of 1 450 and annealing time of 20 h). The transmittance of ceramic in a visable bond is 50% andthe maximum transmittance in a mid-infrared bond is 82%. The up-conversion mechanism of the sample was analyzed viaabsorption spectra, emission spectra and up-conversion emission spectra. The results indicate that the ceramic sample has a mostintensive absorption at 977 nm, the strongest emission peak is located at 1 545 nm, and the up-conversion emission spectra showintense green and blue emissions.

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基金项目:
吉林省科技发展计划(20120223)资助。
作者简介:
第一作者:杨晓敏(1990—),女,硕士研究生。E-mail: cpuyangxiaomin@163.com 通信作者:朱忠丽(1972—),女,博士,教授。E-mail: zhu0983@126.com
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