PRODUCTION METHOD FOR HIGH-LUMINANCE ILLUMINATOR, AND HIGH-LUMINANCE ILLUMINATOR
PROBLEM TO BE SOLVED: To provide a production method for high-luminance illuminator particles improved in crystallinity and a high-luminance illuminator obtained thereby. SOLUTION: In producing the high-luminance illuminator such as BaMgAl10O17:Eu(BAM), an acid is added to an aqueous solution contai...
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| creator | OBATA MICHIO TANNO HIROAKI XU CHAO-NAN CHO SHOSHU NISHIKUBO KEIKO |
| description | PROBLEM TO BE SOLVED: To provide a production method for high-luminance illuminator particles improved in crystallinity and a high-luminance illuminator obtained thereby. SOLUTION: In producing the high-luminance illuminator such as BaMgAl10O17:Eu(BAM), an acid is added to an aqueous solution containing an aluminum alcoholate and water-soluble compounds of barium, magnesium, and europium; then, the solution is heated at about 900°C to be temporarily fired; and the resultant temporarily fired product is regularly fired at 1,400°C or higher. Thus, fine spherical particles of BAM with a pure phase and an improved crystallinity are produced. Since the BAM has an improved crystallinity, its thermal deterioration and VUV (vacuum UV) deterioration can be decreased. COPYRIGHT: (C)2004,JPO&NCIPI |
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SOLUTION: In producing the high-luminance illuminator such as BaMgAl10O17:Eu(BAM), an acid is added to an aqueous solution containing an aluminum alcoholate and water-soluble compounds of barium, magnesium, and europium; then, the solution is heated at about 900°C to be temporarily fired; and the resultant temporarily fired product is regularly fired at 1,400°C or higher. Thus, fine spherical particles of BAM with a pure phase and an improved crystallinity are produced. Since the BAM has an improved crystallinity, its thermal deterioration and VUV (vacuum UV) deterioration can be decreased. 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| subjects | ADHESIVES BASIC ELECTRIC ELEMENTS CHEMISTRY DYES ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRICITY MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES |
| title | PRODUCTION METHOD FOR HIGH-LUMINANCE ILLUMINATOR, AND HIGH-LUMINANCE ILLUMINATOR |
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