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    Europium, and yttrium oxide or gadolinium oxide core/shell composition, phosphor including said composition, and methods for preparing same
    7.
    发明授权
    Europium, and yttrium oxide or gadolinium oxide core/shell composition, phosphor including said composition, and methods for preparing same 有权
    铕和氧化钇核/壳组合物，包含所述组合物的磷光体及其制备方法

    公开(公告)号：US09045679B2

    公开(公告)日：2015-06-02

    申请号：US13262099

    申请日：2010-03-25

    申请人： Valérie Buissette ,  Thierry Le-Mercier

    发明人： Valérie Buissette ,  Thierry Le-Mercier

    IPC分类号： C09K11/08 ,  C09K11/70 ,  C09K11/02 ,  C09K11/77

    CPC分类号： C09K11/02 ,  C09K11/7783 ,  C09K11/7787 ,  C09K11/7795

    摘要： A composition including an inorganic core and a europium and yttrium oxide or gadolinium shell uniformly covering the inorganic core at a thickness greater than or equal to 300 nm is described. A phosphor including the composition is also described. In addition a process of forming the composition by: forming a suspension including the inorganic core with pH of 8 to 11; adding a solution including a europium salt and yttrium or gadolinium salt to the suspension and maintaining the pH of the reaction medium at a constant value; and separating the formed solid and calcining the same to a temperature of at most 1000° C. is described.

    摘要翻译： 描述了包含无机芯和以大于或等于300nm的厚度均匀覆盖无机芯的铕和氧化钇或钆壳的组合物。 还描述了包含该组合物的磷光体。 另外，通过以下方式形成组合物的方法：形成pH为8〜11的包含无机核的悬浮液; 向悬浮液中加入包含铕盐和钇或钆盐的溶液，并将反应介质的pH保持在恒定值; 并将形成的固体分离并将其煅烧至至多1000℃的温度。

    CORE/SHELL LANTHANUM CERIUM TERBIUM PHOSPHATE, AND PHOSPHOR HAVING IMPROVED THERMAL STABILITY AND INCLUDING SAID PHOSPHATE
    8.
    发明申请
    CORE/SHELL LANTHANUM CERIUM TERBIUM PHOSPHATE, AND PHOSPHOR HAVING IMPROVED THERMAL STABILITY AND INCLUDING SAID PHOSPHATE 审中-公开
    核心/壳牌硫酸钡磷酸盐，以及具有改善的热稳定性和包含酸性磷酸盐的磷酸盐

    公开(公告)号：US20130099161A1

    公开(公告)日：2013-04-25

    申请号：US13641016

    申请日：2011-04-11

    申请人： Valérie Buissette ,  Thierry Le-Mercier

    发明人： Valérie Buissette ,  Thierry Le-Mercier

    IPC分类号： C09K11/77

    CPC分类号： C09K11/7777 ,  C01B25/37 ,  C01B25/45

    摘要： A phosphate particle with a mean diameter of from 1.5 μm to 15 μm, which has an inorganic core and a shell that covers the inorganic core uniformly over a thickness of no less than 300 nm, is described. The shell can have a lanthanum cerium terbium phosphate of formula La(1-x-y)CexTbyPO4, where 0.2≦x≦0.35 and 0.19≦y≦0.22. The phosphor is produced by heat-treating a phosphate at a temperature of greater than 900° C.

    摘要翻译： 描述平均直径为1.5μm至15μm的磷酸盐颗粒，其具有在不小于300nm的厚度上均匀覆盖无机芯的无机芯和壳。 壳可以具有式La（1-x-y）CexTbyPO4的镧铈铽磷酸盐，其中0.2 @ x @ 0.35和0.19 @ y @ 0.22。 通过在大于900℃的温度下热处理磷酸盐来制造荧光体。

    EUROPIUM, AND YTTRIUM OXIDE OR GADOLINIUM OXIDE CORE/SHELL COMPOSITION, PHOSPHOR INCLUDING SAID COMPOSITION, AND METHODS FOR PREPARING SAME
    9.
    发明申请
    EUROPIUM, AND YTTRIUM OXIDE OR GADOLINIUM OXIDE CORE/SHELL COMPOSITION, PHOSPHOR INCLUDING SAID COMPOSITION, AND METHODS FOR PREPARING SAME 有权
    欧洲氧化物或氧化铝或氧化铝核心/壳体组合物，包括上述组合物的磷光体及其制备方法

    公开(公告)号：US20120032113A1

    公开(公告)日：2012-02-09

    申请号：US13262099

    申请日：2010-03-25

    申请人： Valérie Buissette ,  Thierry Le-Mercier

    发明人： Valérie Buissette ,  Thierry Le-Mercier

    IPC分类号： C09K11/78 ,  C09K11/81

    CPC分类号： C09K11/02 ,  C09K11/7783 ,  C09K11/7787 ,  C09K11/7795

    摘要： A composition including an inorganic core and a europium and yttrium oxide or gadolinium shell uniformly covering the inorganic core at a thickness greater than or equal to 300 nm is described. A phosphor including the composition is also described. In addition a process of forming the composition by: forming a suspension including the inorganic core with pH of 8 to 11; adding a solution including a europium salt and yttrium or gadolinium salt to the suspension and maintaining the pH of the reaction medium at a constant value; and separating the formed solid and calcining the same to a temperature of at most 1000° C. is described.

    摘要翻译： 描述了包含无机芯和以大于或等于300nm的厚度均匀覆盖无机芯的铕和氧化钇或钆壳的组合物。 还描述了包含该组合物的磷光体。 另外，通过以下方式形成组合物的方法：形成pH为8〜11的包含无机核的悬浮液; 向悬浮液中加入包含铕盐和钇或钆盐的溶液，并将反应介质的pH保持在恒定值; 并将形成的固体分离并将其煅烧至至多1000℃的温度。

    CERIUM AND/OR TERBIUM PHOSPHATE OPTIONALLY WITH LANTHANUM, PHOSPHOR RESULTING FROM SAID PHOSPHATE AND METHODS FOR MAKING SAME
    10.
    发明申请
    CERIUM AND/OR TERBIUM PHOSPHATE OPTIONALLY WITH LANTHANUM, PHOSPHOR RESULTING FROM SAID PHOSPHATE AND METHODS FOR MAKING SAME 审中-公开
    铈和/或磷酸氢钡选择性地与磷酸盐形成的磷酸盐和由其制备的磷酸盐

    公开(公告)号：US20110272634A1

    公开(公告)日：2011-11-10

    申请号：US13129704

    申请日：2009-11-18

    申请人： Valérie Buissette ,  Thierry Le-Mercier

    发明人： Valérie Buissette ,  Thierry Le-Mercier

    IPC分类号： C09K11/81 ,  C01F17/00

    CPC分类号： C09K11/7778 ,  C01B25/37 ,  C01B25/45

    摘要： A rare earth element phosphate (Ln) is described, wherein Ln is either: (1) at least one rare earth element selected from cerium and terbium, or (2) lanthanum in combination with at least one of the above two rare earth elements, and wherein the phosphate has a crystalline structure either of the rhabdophane type with a sodium content of at most 6000 ppm, or of the monazite type with a sodium content of at most 4000 ppm. The phosphate can be obtained by the precipitation of a rare earth element chloride at a constant pH lower than 2, and then calcining and redispersing the same in hot water. A phosphor obtained by calcining the phosphate at at least 1000° C. is also described.

    摘要翻译： 描述了稀土元素磷酸盐（Ln），其中Ln是：（1）至少一种选自铈和铽的稀土元素，或（2）与上述两种稀土元素中的至少一种组合的镧， 并且其中所述磷酸盐具有钠含量至多为6000ppm的rhabdophane型晶体结构，或钠含量在4000ppm以下的独居石型。 磷酸盐可以通过在低于2的恒定pH下沉淀稀土元素氯化物，然后在热水中煅烧并再分散而获得。 还描述了通过在至少1000℃煅烧磷酸盐而获得的磷光体。