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公开(公告)号:KR100256039B1
公开(公告)日:2000-08-01
申请号:KR1019970055507
申请日:1997-10-28
Applicant: 한국과학기술연구원
IPC: C09K11/08
Abstract: PURPOSE: A process for preparing yttrium vanadate fluorescent material is provided for increasing luminous efficiency suitable for producing the high-pressure mercury lamp by using yttrium vanadate as the main component doped with other metallic oxides. CONSTITUTION: The process for preparing yttrium vanadate V2O5:Dy fluorescent material used in the production of high-pressure mercury lamp and having improved luminous efficiency comprises blending yttrium compound selected from yttrium oxide, yttrium nitrate or yttrium chloride, V2O5 in equal mole and Dy2O3 in 0.1-2 mol% at Dy content of the final product; and primarily heating it at 800-1000 deg.C. then 1000-1200 deg.C. for total 5-20 hours. Further, A2O3 (wherein A is Al, Ga or As) may be added to the blending step in an amount of 0.1-2 mol% at A content based on the final product.
Abstract translation: 目的:提供一种制备钒酸钇荧光材料的方法,用于通过使用钒酸钇作为掺杂其它金属氧化物的主要成分来提高适用于生产高压汞灯的发光效率。 构成:用于生产高压汞灯并提高发光效率的钒酸钇V 2 O 5:Dy荧光材料的制备方法包括将选自氧化钇,硝酸钇或氯化钇等的钇化合物,等摩尔的V 2 O 3和Dy 2 O 3 最终产品的Dy含量为0.1-2mol%; 并主要在800-1000摄氏度加热。 然后1000-1200摄氏度 总共5-20小时。 此外,相对于最终产品,可以将A 2 O 3(其中A为Al,Ga或As)以相对于最终产品的A含量添加至共混步骤中的量为0.1-2mol%。
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