Synthesis of yttrium aluminum garnet (YAG) by a new sol–gel method
2004; Elsevier BV; Volume: 379; Issue: 1-2 Linguagem: Inglês
10.1016/j.jallcom.2004.02.030
ISSN1873-4669
AutoresZhihong Sun, Duorong Yuan, Haoqiang Li, Xiulan Duan, Haiqing Sun, Zengmei Wang, Xuecheng Wei, Hongyan Xu, Caìna Luan, Dong Xu, Mengkai Lv,
Tópico(s)Photorefractive and Nonlinear Optics
ResumoUsing Al(OPri)3 (aluminum-iso-propoxide) and Y(NO3)3·6H2O as starting materials with HNO3 as catalyst the YAG (yttrium aluminum garnet) precursor was prepared by a new sol–gel method. Polycrystalline YAG powders were obtained by drying the YAG precursor then heat-treated at temperatures above 850 °C. The forming process of YAG was investigated by means of XRD, DTA and FT-IR spectra, and no other intermediate phases were observed to form over the temperature range of 850–950 °C. The size of YAG nanocrystallite was estimated to be about 20–30 nm according to XRD.
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