Synthesis of YAG powder by the modified sol–gel combustion method
2009; Elsevier BV; Volume: 484; Issue: 1-2 Linguagem: Inglês
10.1016/j.jallcom.2009.04.123
ISSN1873-4669
AutoresLin Yang, Tien‐Chang Lu, Hui Xu, Nian Wei,
Tópico(s)Photorefractive and Nonlinear Optics
ResumoYttrium aluminum garnet (YAG) precursor was prepared by sol–gel combustion method using ethanol as solvent. Nano-sized YAG powders were obtained by precalcining the precursor at 500 °C, and then calcining at different temperatures. The phase formation and characteristics of YAG powders were investigated by means of XRD, TG/DSC and TEM. Pure crystalline YAG phase was obtained at 800 °C, without any intermediate phases such as YAlO3 (YAP) and Y4Al2O9 (YAM). Moreover, it was found that the elliptical YAG powder calcined at 900 °C for 2 h was well-crystallized with an average size of 30 nm, and had a good dispersity.
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