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J. Korean Ceram. Soc. > Volume 37(8); 2000 > Article
Journal of the Korean Ceramic Society 2000;37(8): 739.
수열반응 조건에 의한 YAG 분말의 특성과 형상제어
지성훈, 김상문1, 구자인, 김태옥
부산대학교 공과대학 무기재료공학과
1LG전자(주) Display사업본부 Display Device연구소
Properties and Shape Control of YAG Powder Prepared by Hydrothermal Reaction
ABSTRACT
YAG(Y3Al5O12) as host material of YAG:Tb3+ was studied via hydrothermal synthesis of metal hydroxides. We changed the kind of mineralizer, the concentrations and process conditions in hydrothermal synthesis. As a result, we found, acicular YAG powders were obtained by the use of KOH as a mineralizer, the concentration of KOH affected the shape and size of YAG powder. Fine grained YAG were perpared by the use of NH4OH as a mineralizer and the concentration of NH4OH affected crystal phases but did not affect particle size. We could finally get the spherical looking YAG powder at 8 M NH4OH and at 35$0^{circ}C$ for 12h. The average particle size was about 0.2${mu}{textrm}{m}$.
Key words: YAG(${Y_3}{Al_5}{O_{12}}$), Hydrothermal synthesis, Mineralizer
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