| 摘要 |
PURPOSE: A method for manufacturing nitride phosphors using a spark plasma sintering method is provided to obtain faster reaction time than a gas pressure sintering method, to economically manufacture the nitride phosphors at low nitrogen pressure(or a vacuum condition), and to prevent carbon contamination. CONSTITUTION: A method for manufacturing nitride phosphors uses an electric discharge plasma sintering apparatus including a carbon mold(22) and first and second carbon punches(23,24). The method comprises the following steps: providing a phosphor powder material(21) including nitride powder and an activator; coating a part of a carbon film with boron nitride; arranging the carbon film along the inner wall of the carbon mold and putting the phosphor powder material into the carbon mold; installing the carbon mold in a chamber of the electric discharge plasma sintering apparatus and removing oxygen from the chamber; sintering the phosphor powder material mixture by pressurizing the mixture; and obtaining phosphor powder by pulverizing the sintered material.
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