To provide a method for efficiently and simply producing alpha-sialon phosphor powder excellent in applicability and having an almost spherical shape from about several μm to ten and several μm.
The method for producing the alpha-sialon phosphor powder comprises a kneading process for kneading a powdery raw material containing elements constituting the alpha-sialon phosphor by wet mill, a granulation process for adjusting particle sizes of powdery raw material aggregates by spray drying the kneaded product prepared by spray dryer in the kneading process and a sintering process for sintering the aggregated particles produced in the granulation process by housing them in a vessel in a powdery state without compression molding to obtain the alpha-sialon phosphor powder.
HIRAFUNE SHUNICHIRO (JP)
HIROSAKI NAOTO (JP)
NAT INST FOR MATERIALS SCIENCE
| JPH04144969A | 1992-05-19 | |||
| JP2005036038A | 2005-02-10 | |||
| JP2005008794A | 2005-01-13 | |||
| JPH04130014A | 1992-05-01 | |||
| JP2005154611A | 2005-06-16 |
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama