کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1261638 | 971823 | 2015 | 4 صفحه PDF | دانلود رایگان |

Cerium-doped nonstoichiometric (Ce,Lu,Gd)3+δ(Ga,Al)5–δO12 (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 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.
Optical transmission spectra of the un-annealed and annealed samples (3 mm thickness)Figure optionsDownload as PowerPoint slide
Journal: Journal of Rare Earths - Volume 33, Issue 8, August 2015, Pages 863–866