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硅酸盐学报 2015

真空烧结技术制备Er:(Yb1–xLax)2O3 透明陶瓷

DOI: 10.14062/j.issn.0454-5648.2015.09.10

杨晓敏,朱忠丽

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Abstract:

采用冷等静压-真空烧结技术制备尺寸为?10mm×lmm的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1750℃烧结20h和在1450℃退火20h。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977nm处有强吸收，发射最强峰在1545nm处，上转换发出较强的绿光(542nm)和蓝光(484nm)。

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