Method of making europium activated yttrium oxide phosphor
    1.
    发明授权
    Method of making europium activated yttrium oxide phosphor 失效
    制备铕活化钇氧化物荧光粉的方法

    公开(公告)号:US4948527A

    公开(公告)日:1990-08-14

    申请号:US419235

    申请日:1989-10-10

    IPC分类号: C09K11/77 C09K11/78

    CPC分类号: C09K11/7787

    摘要: A europium activated yttrium oxide phosphor is prepared as follows. Europium oxide is dissolved in nitric acid. Ammonium hydroxide is added to precipitate europium hydroxide, which is then dissolved in citric acid monohydrate to form europium citrate solution. Yttrium oxide powder is added to the solution to form a slurry, which is then spray dried. The spray dried powder is fired at a high temperature to form the phosphor.

    摘要翻译: 铕活化钇氧化物荧光体如下制备。 将氧化铕溶解在硝酸中。 加入氢氧化铵以沉淀氢氧化铕,然后将其溶于柠檬酸一水合物中以形成柠檬酸铕溶液。 将氧化钇粉末加入到溶液中以形成浆料,然后喷雾干燥。 将喷雾干燥的粉末在高温下烧成以形成荧光体。