Synthesis of SiAlON Phosphors by Flux Addition

摘要

have a uniform particle size for the preparation of a good luminance characteristic alpha sialon phosphor powder is disclosed. The present invention , in the M1xM2ySi12-m-nAlm + nOnN16-n by the production process of -SiAlON phosphor represented , silicon nitride , aluminum nitride , and the M1, M2 preparing a starting material comprising a compound of the metal at a predetermined ratio ; Mixing the non-metallic or non-metallic fluoride chloride of 5 to 10% by weight in a weight ratio to the starting material composition; And the mixture is then baked to provide a method for producing -SiAlON fluorescent material , comprising the step of synthesizing -SiAlON. According to the present invention , the shape and size of the particles and the surface defect by the low-energy milling and synthesis it is possible to provide a manufacturing method of a nitride phosphor controllable . ;