Title:
FERROMAGNETIC CARBON MATERIAL AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP2659077
Kind Code:
B2
Abstract:
PURPOSE: To obtain a ferromagnetic carbon material made of entirely carbonaceous ungraphitized carbide by heating an org. substance or ungraphitized carbide of the org. substance at a certain temp. in the presence of halogen.
CONSTITUTION: An org. substance or ungraphitized carbide of the org. substance is heated at 250-800°C in an oxygen-free inert gaseous atmosphere contg. 1-5vol.% halogen or halogen generating agent to obtain the objective ferromagnetic carbon material made of entirely carbonaceous ungraphitized carbide. This material has the advantage of low specific gravity and lightweight and is easy to produce.
Inventors:
UEDA HISASHI
Application Number:
JP10977991A
Publication Date:
September 30, 1997
Filing Date:
April 15, 1991
Export Citation:
Assignee:
KOGYO GIJUTSU INCHO
International Classes:
C01B31/02; H01F1/00; H01F1/10; (IPC1-7): C01B31/02; H01F1/10
Domestic Patent References:
| JPH02296710A |
Attorney, Agent or Firm:
工業技術院物質工学工業技術研究所長