| 发明名称 |
METHOD OF STABILIZING ALPH-SIALON PHOSPHOR RAW POWDER, ALPH-SIALON PHOSPHOR COMPOSITION OBTAINED THEREFROM, AND METHOD OF MANUFACTURING ALPHA-SIALON PHOSPHOR |
| 摘要 |
Disclosed herein is a method of stabilizing alpha-sialon phosphor raw powder, including the steps of: mixing alpha-sialon phosphor raw powder including Si3N4, AlN, a rare-earth metal oxide and calcium nitride (Ca3N2) as a calcium source and having Composition Formula represented by CaxSi12−m−nAlm+nOnN16−n:Rey (here, Re is an activator and is at least one selected from the group consisting of Eu, Ce, Tb, Yb, Sm and Dy, 0.3≦m≦1.0, 0.02≦y≦0.15, m=2x+3y); and heat-treating the alpha-sialon phosphor raw powder to convert the calcium source into a Ca—Al—Si—N based compound. This method is advantageous in that a reliable alpha-sialon phosphor having high photoluminescence intensity can be manufactured regardless of weather, season, environment and the like. |
| 申请公布号 |
US2014191159(A1) |
申请公布日期 |
2014.07.10 |
| 申请号 |
US201313761110 |
申请日期 |
2013.02.06 |
| 申请人 |
MACHINERY & MATERIALS KOREA INSTITUTE OF |
发明人 |
KIM Jin Myung;LEE Jae Wook;PARK Young Jo |
| 分类号 |
C09K11/77 |
主分类号 |
C09K11/77 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A method of stabilizing alpha-sialon phosphor raw powder, comprising the steps of:
mixing alpha-sialon phosphor raw powder including Si3N4, AlN, a rare-earth metal oxide and calcium nitride (Ca3N2) as a calcium source and having Composition Formula represented by CaxSi12−m−nAlm+nOnN16−n:Rey (here, Re is an activator and is at least one selected from the group consisting of Eu, Ce, Tb, Yb, Sm and Dy, 0.3≦m≦1.0, 0.02≦y≦0.15, m=2x+3y); and heat-treating the alpha-sialon phosphor raw powder to convert the calcium source into a Ca—Al—Si—N based compound. |
| 地址 |
US |
