公开(公告)号：US4141855A

公开(公告)日：1979-02-27

申请号：US850253

申请日：1977-11-10

Applicant: Tetsuhiko Tomiki ,  Takeshi Takeda ,  Takeo Miyata ,  Fumio Muramatsu

Inventor： Tetsuhiko Tomiki ,  Takeshi Takeda ,  Takeo Miyata ,  Fumio Muramatsu

IPC: C09K11/77 ,  C09K11/80 ,  C09K11/46

CPC classification number: C09K11/7774

Abstract: A phosphor expressed fundamentally as YA10.sub.3 :Ce is produced through baking under a usual condition of a mixture of Y.sub.2 O.sub.3, Al.sub.2 O.sub.3, CeO.sub.2 and a controlled amount of barium compound exemplified by BaCO.sub.3, BaO, Ba(OH).sub.2 and BaF.sub.2. The presence of the barium compound in the mixture causes intensification of ultraviolet emission and/or suppression of the formation of blue-emitting Y.sub.3 Al.sub.5 O.sub.12 :Ce. The use of BaF.sub.2 as the barium compound or partial replacement of at least one of Y.sub.2 O.sub.3 and Al.sub.2 O.sub.3 respectively by YF.sub.3 and AlF.sub.3 is favorable to the intensification of the ultraviolet emission.

Abstract translation: 表示为YA103：Ce的荧光体，通过在通常的Y 2 O 3，Al 2 O 3，CeO 2和BaCO 3，BaO，Ba（OH）2和BaF 2的钡化合物的混合物的条件下进行烧成来制造。 混合物中钡化合物的存在导致紫外线发射的强化和/或抑制蓝色发射的Y 3 Al 5 O 12：Ce的形成。 通过YF3和AlF3分别使用BaF2作为钡化合物或分别替代Y2O3和Al2O3中的至少一种，有利于紫外线发射的增强。