| 发明名称 |
BARIUM MAGNESIUM ALUMINATE(BAM) BASE BLUE FLUORESCENT MATERIAL AND PROCESS FOR PRODUCING THE SAME |
| 摘要 |
PURPOSE: A barium magnesium aluminate(BAM) based blue fluorescent material is provided to accomplish superior brightness in UV area suitable to manufacture a lamp and/or a plasma display panel(PDP) by adding activating agent Eu2+ to BAM. CONSTITUTION: The BAM fluorescent material is defined as the formula(1) of Ba(a-b)Mg(c)Al(d)O(a+b+c+3/2d):Eu(b) (wherein 0.5=<a=<1.5, 0<b=<0.3, 0.5=<c=<1.5 and 0<d=<20) and is produced by dissolving 0.5-1.5 molar ratio of BaCO3, 0.5-1.5 molar ratio of MgO, 9-15 molar ratio of Al powder and 0.005-0.21 molar ratio of Eu2O3 in nitric acid, respectively, and adding to the respective solutions with distilled water to form each of the precursor solutions; aliquoting and mixing together them in a composition according to the formula:Ba(a-b)MgcAldO(a+b+c+3/2d):Eub, then drying it; plasticizing the prepared solution under the reduction atmosphere of nitrogen gas containing 5-25% of hydrogen gas and 1200-1400 deg.C. |
| 申请公布号 |
KR20010083359(A) |
申请公布日期 |
2001.09.01 |
| 申请号 |
KR20000006561 |
申请日期 |
2000.02.11 |
| 申请人 |
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY |
发明人 |
KIM, CHANG HAE;PARK, EUNG SEOK;PARK, HUI DONG;SON, GI SEON |
| 分类号 |
C09K11/08 |
主分类号 |
C09K11/08 |
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