Preparation of YAG Powder by Co-Precipitation Method in a Narrow pH-Change Environment

YAG（Y3Al5O12） powder was prepared by co-precipitation method.To avoid pH values changing intensely during titration process,the 4 3 NH HCO solution with 4 3 NH NO was used as precipitant solution.The pH change of precipitant solution during titration process,compositions of precursor,phase formation...

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Bibliographic Details
Published in:Journal of Wuhan University of Technology. Materials science edition 2010-06, Vol.25 (3), p.379-383
Main Authors: Ma, Benyuan, Lu, Tiecheng, Xiao, Shuxing, Wei, Nian, Qi, Jianqi, Lu, Zhongwen, Zhang, Wei, Li, Feng, Xu, Xuezhen
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Materials Science
pH变化
Y3Al5O12
YAG激光
一氧化氮
共沉淀法
滴定过程
粉末制备
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Summary:YAG（Y3Al5O12） powder was prepared by co-precipitation method.To avoid pH values changing intensely during titration process,the 4 3 NH HCO solution with 4 3 NH NO was used as precipitant solution.The pH change of precipitant solution during titration process,compositions of precursor,phase formation process and morphology of the prepared powder were investigated by means of pH meter,FT-IR,XRD and TEM.The results show that the presence of 4 3 NH NO in 4 3 NH HCO solution is crucial to alleviate the pH change,lower the calcination temperature and meliorate the morphology of YAG powder.The mechanisms were studied in detail.The YAG phase can be obtained at a lower temperature of 900 ℃.The obtained powder,composed of elliptical particles,showed a meliorated morphology.
ISSN:1000-2413
1993-0437
DOI:10.1007/s11595-010-0005-3