Method for producing a terbium activated cerium magnesium aluminate
phosphor
    2.
    发明授权
    Method for producing a terbium activated cerium magnesium aluminate phosphor 失效
    铽活化铈铝酸镁荧光体的制备方法

    公开(公告)号:US4840747A

    公开(公告)日:1989-06-20

    申请号:US275485

    申请日:1988-11-23

    IPC分类号: C09K11/77 C09K11/80

    CPC分类号: C09K11/7774

    摘要: A method is disclosed for producing a terbium activated cerium magnesium aluminate phosphor which comprises forming a uniform powder blend consisting essentially of in percent by weight from about 73 to about 74 aluminum oxide wherein the aluminum oxide can be alpha aluminum oxide or gamma aluminum oxide or combinations thereof, from about 12 to about 14 cerium oxide, from about 2 to about 3 magnesium, from about 0.3 to about 0.7 fluoride, and from about 6 to about 9 terbium, firing the blend in a non-oxidizing atmosphere at a temperature of from about 1500.degree. C. to about 1800.degree. C. for a sufficient time to produce the phosphor wherein the particle size is no greater than about 5 micrometers in diameter. The phosphor is then cooled and deagglomerated.

    摘要翻译: 公开了一种用于制备铽激活的铈铝酸镁荧光体的方法,其包括形成基本上由约73至约74个氧化铝重量百分比组成的均匀粉末混合物,其中所述氧化铝可以是α氧化铝或γ-氧化铝或组合 约12至约14个氧化铈,约2至约3个镁,约0.3至约0.7个氟化物和约6至约9个铽,在非氧化性气氛中,在 约1500℃至约1800℃,足够的时间来生产其中粒径不大于约5微米直径的磷光体。 然后将荧光体冷却并解聚。