期刊
JOURNAL OF RARE EARTHS
卷 33, 期 8, 页码 863-866出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1002-0721(14)60497-X
关键词
transparent ceramic; nonstoichiometric; microstructure; optical properties; rare earths
资金
- National Natural Science Foundation of China [NSFC11404351, 51402317]
- Ningbo Municipal Natural Science Foundation [2014A610007, 2014A610014, 2014A610122]
- Ningbo Science and Technology Innovation Team [2014B82004]
Cerium-doped nonstoichiometric (Ce, Lu, Gd)(3+delta)(Ga, Al)(5-delta)O-12 (LuGGAG) 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 LuGGAG 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 mu m 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.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据