Fabrication method for nitride phosphor using spark plasma sintering

摘要

carbon mold, and the mold of the carbon located at both ends in each of the first carbon and the second carbon punching includes punching that there is provided a method for producing a nitride phosphor using a spark plasma sintering apparatus. The carbon to which the steps of providing a powder material comprises a nitride phosphor powder and a surfactant, the method comprising: coating at least a part of boron nitride (BN) on the carbon film, the boron nitride coated face can be brought into contact with the phosphor powder material placing a film along the inner wall of the carbon mold, but put the phosphor material powder in the carbon mold, and the phosphor powder via the first material and a boron nitride substrate between the first carbon punch, the phosphor powder material and The second carbon is at least the phosphor powder raw material by placing the second boron nitride substrate between the carbon mold punch, the first punch and the carbon phase and to avoid direct contact with the surface of the second carbon punch, the carbon mold to obtain a phosphor powder by pulverizing the obtained sintered body step, and the temperature was raised and the pressure sintering step of the phosphor powder raw material mixture, and the pressure was released and cooling to remove the oxygen in the installation and the chamber to the chamber of the discharge plasma sintering apparatus Steps include.