公开(公告)号：US20130207040A1

公开(公告)日：2013-08-15

申请号：US13759104

申请日：2013-02-05

Applicant: Rolex SA

Inventor： Detlef Berner ,  Hans U. Güdel ,  Isabelle Rigot ,  Romain Girod ,  Christoph Kenzelmann

IPC: C09K11/77

CPC classification number: C09K11/7792

Abstract: The present invention relates to long decay phosphors comprising rare earth activated strontium aluminates and methods for producing them. The phosphors comprise a matrix of the formula Sr4Al14O25 comprising europium as an activator and a further rare earth element as a co-activator, wherein the molar ratio of Al/Sr in the starting materials is in the range of 3.1 to less than 3.5 and the ratio of Eu/Sr is in the range of 0.0015 to 0.01. The process for the preparation of a phosphor comprises the steps of milling the starting materials for the synthesis of the phosphor, the starting materials comprising a boron compound selected from boric acid, boric oxide or a borate salt in an amount such that the B/Sr molar ratio is between 0.1 and to 0.3, treating the milled composition with heat, grinding the block material which is obtained through the heat treatment, ball-milling the crushed material, sieving the material, and washing the material with an aqueous solution.

Abstract translation: 本发明涉及包含稀土活化的锶铝酸盐的长衰减磷光体及其制备方法。 磷光体包含式Sr4Al14O25的基质，其包含作为活化剂的铕和作为助活化剂的另外的稀土元素，其中原料中Al / Sr的摩尔比在3.1至小于3.5的范围内， Eu / Sr的比例在0.0015〜0.01的范围内。 制备荧光体的方法包括以下步骤：研磨用于合成荧光体的原料，所述起始材料包含选自硼酸，氧化硼或硼酸盐的硼化合物，其量使得B / Sr 摩尔比在0.1和0.3之间，用热处理研磨的组合物，研磨通过热处理获得的块材料，球磨研磨破碎的材料，筛分材料，并用水溶液洗涤材料。

公开(公告)号：US09394480B2

公开(公告)日：2016-07-19

申请号：US13759104

申请日：2013-02-05

Applicant: Rolex SA

Inventor： Detlef Berner ,  Hans U. Güdel ,  Isabelle Rigot ,  Romain Girod ,  Christoph Kenzelmann

IPC: C09K11/77

CPC classification number: C09K11/7792

Abstract: The present invention relates to long decay phosphors comprising rare earth activated strontium aluminates and methods for producing them. The phosphors comprise a matrix of the formula Sr4Al14O25 comprising europium as an activator and a further rare earth element as a co-activator, wherein the molar ratio of Al/Sr in the starting materials is in the range of 3.1 to less than 3.5 and the ratio of Eu/Sr is in the range of 0.0015 to 0.01. The process for the preparation of a phosphor comprises the steps of milling the starting materials for the synthesis of the phosphor, the starting materials comprising a boron compound selected from boric acid, boric oxide or a borate salt in an amount such that the B/Sr molar ratio is between 0.1 and to 0.3, treating the milled composition with heat, grinding the block material which is obtained through the heat treatment, ball-milling the crushed material, sieving the material, and washing the material with an aqueous solution.

Abstract translation: 本发明涉及包含稀土活化的锶铝酸盐的长衰减磷光体及其制备方法。 磷光体包含式Sr4Al14O25的基质，其包含作为活化剂的铕和作为助活化剂的另外的稀土元素，其中原料中Al / Sr的摩尔比在3.1至小于3.5的范围内， Eu / Sr的比例在0.0015〜0.01的范围内。 制备荧光体的方法包括以下步骤：研磨用于合成荧光体的原料，所述起始材料包含选自硼酸，氧化硼或硼酸盐的硼化合物，其量使得B / Sr 摩尔比在0.1和0.3之间，用热处理研磨的组合物，研磨通过热处理获得的块材料，球磨研磨破碎的材料，筛分材料，并用水溶液洗涤材料。