Title:
COATED METAL FINE PARTICLES AND PROCESS FOR PRODUCTION THEREOF
Document Type and Number:
WIPO Patent Application WO/2008/035681
Kind Code:
A1
Abstract:
A process for the production of coated metal fine particles, characterized by mixing
a powder containing TiC or a powder containing TiC and TiN with an oxide powder
of a metal (M) having a standard free energy of formation (ΔGM-O) satisfying
the relationship: ΔGM-O > ΔGTiO2 and heat-treating
the obtained mixture in a non-oxidizing atmosphere to conduct the reduction
of the oxide of the metal (M) with Ti and the surface coating of the obtained metal
(M) particles with Ti oxides; and coated metal fine particles obtained by coating
core particles made of a metal with Ti oxides, characterized by a carbon content
of 0.2 to 1.4% by mass and a nitrogen content of 0.01 to 0.2% by mass.
Inventors:
TOKORO HISATO (JP)
FUJII SHIGEO (JP)
NAKABAYASHI TAKASHI (JP)
FUJII SHIGEO (JP)
NAKABAYASHI TAKASHI (JP)
Application Number:
PCT/JP2007/068102
Publication Date:
March 27, 2008
Filing Date:
September 18, 2007
Export Citation:
Assignee:
HITACHI METALS LTD (JP)
TOKORO HISATO (JP)
FUJII SHIGEO (JP)
NAKABAYASHI TAKASHI (JP)
TOKORO HISATO (JP)
FUJII SHIGEO (JP)
NAKABAYASHI TAKASHI (JP)
International Classes:
B22F1/16; G11B5/84; H01F1/33
Foreign References:
| JP2005120470A | 2005-05-12 | |||
| JP2006097123A | 2006-04-13 | |||
| JP2000030920A | 2000-01-28 | |||
| JPH09143502A | 1997-06-03 |
Other References:
See also references of EP 2065106A4
Attorney, Agent or Firm:
TAKAISHI, Kitsuma (67 Kagurazaka 6-chom, Shinjuku-ku Tokyo 25, JP)
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