Fabricationofcerium-dopednonstoichiometric（Ce,Lu,Gd）3+δ（Ga,Al）5–δO12transparentceramics

被引：5

作者：

陈先强 ^{[1
,2
]}

秦海明 ^{[1
]}

张烨 ^{[1
]}

罗朝华 ^{[1
]}

刘永福 ^{[1
]}

蒋俊 ^{[1
]}

江浩川 ^{[1
]}

机构：

[1] Ningbo Institution of Materials Technology and Engineering, Chinese Academy of Sciences

[2] University of the Chinese Academy of Sciences

来源：

JournalofRareEarths | 2015年 / 33卷 / 08期

关键词：

transparent ceramic; nonstoichiometric; microstructure; optical properties; rare earths;

D O I：

暂无

中图分类号：

TQ174.758.23 [];

学科分类号：

0809 ;

摘要：

Cerium-doped nonstoichiometric(Ce,Lu,Gd)3+δ(Ga,Al)5–δO12(LuG GAG) transparent garnet ceramic samples were fabricated via a solid state reaction method in this study. The ceramics were prepared via oxygen sintering followed by hot isostatic pressing(HIP). The phase and microstructure of the samples were analyzed by X-ray diffraction and scanning electron microscopy(SEM), respectively. The excitation, emission and transmission spectra were also measured. The total optical transmittance of the annealed LuG GAG ceramics with thickness of 3 mm reached 47% at the emission wavelength of 555 nm. The decay time was about 60 ns. Compact microstructure of polycrystalline grains with scale around 5 μm were gained according to scanning electron microscopy characterization. The successful preparation of the bulk ceramic material and implementation of the combined oxygen sintering-hot isostatic pressing treatment process provided an important method for the exploration of nonstoichiometric scintillator material.

引用

页码：863 / 866

页数：4

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