Title:
フッ素含有酸化マグネシウム粉末
Document Type and Number:
Japanese Patent JP4562742
Kind Code:
B2
Abstract:
PURPOSE: A magnesium oxide powders containing fluorine and a manufacturing method thereof are provided to increase light-emitting efficiency. CONSTITUTION: A manufacturing method of magnesium oxide powders containing fluorine comprises the following steps: mixing magnesium oxide material powder with fluorine source powder; putting the mixture into a crucible; and plasticizing the crucible after covering the lid. The fluorine source powder is magnesium fluoride powder. The magnesium oxide material powder has purity of 99.95 mass% or greater and BET non-surface area of 5-150m/g. The powder mixture contains fluorine source powder within a range of 0.015-10/3mass unit based on 5mass unit of the magnesium oxide material powder.
Inventors:
Yuzo Kato
Akira Ueki
Akira Ueki
Application Number:
JP2007013847A
Publication Date:
October 13, 2010
Filing Date:
January 24, 2007
Export Citation:
Assignee:
Ube Material Industries Ltd.
International Classes:
C01F5/02; H01J9/02; H01J11/02; H01J11/22; H01J11/34; H01J11/40
Domestic Patent References:
| JP2001035382A | ||||
| JP11269555A |
Other References:
真保満雄ほか,MgOの結晶成長におけるフッ化物添加の影響,日本セラミックス協会学会誌,日本,1989年 8月 1日,Vol.97 No.8,857-863
真保満雄ほか,Mg(OH)2の熱分解におけるHF添加の影響,日本セラミックス協会学術論文誌,日本,1989年 6月 1日,Vol.97 No.6,640-644
Yi Fang, et al.,Fabrication of translucent MgO ceramics using nanopowders,Materials Letters,NL,2004年 2月,Vol.58 No.5,551-554
Akio Kato, et al.,Sintering Behavior of Ultrafine Magnesia Prepared by Chemical Vapor Reaction,Memoirs of the Faculty of Engineering, Kyushu University,日本,1987年 6月,Vol.47 No.2,135-143
真保満雄ほか,Mg(OH)2の熱分解におけるHF添加の影響,日本セラミックス協会学術論文誌,日本,1989年 6月 1日,Vol.97 No.6,640-644
Yi Fang, et al.,Fabrication of translucent MgO ceramics using nanopowders,Materials Letters,NL,2004年 2月,Vol.58 No.5,551-554
Akio Kato, et al.,Sintering Behavior of Ultrafine Magnesia Prepared by Chemical Vapor Reaction,Memoirs of the Faculty of Engineering, Kyushu University,日本,1987年 6月,Vol.47 No.2,135-143
Attorney, Agent or Firm:
Yanagawa Yasuo