Title:
POROUS METAL ARTICLE, METAL COMPOSITE MATERIAL USING THE ARTICLE AND METHOD FOR PRODUCTION THEREOF
Document Type and Number:
WIPO Patent Application WO/2002/100582
Kind Code:
A1
Abstract:
A porous metal article which has a foam structure having an average pore diameter of 500 μm or less, has a skeleton comprising an alloy containing Fe and Cr as primary components, and has a structure wherein a carbide of Cr or a carbide of FeCr is uniformly dispersed in the skeleton&semi a metal composite material using the porous metal article&semi and a method for producing the porous metal article, which comprises preparing a slurry containing an Fe oxide powder having an average particle diameter of 5 μm or less, one or more of powders of metallic Cr, a Cr alloy and a Cr oxide, a thermoplastic resin and a diluent, as main components, applying the slurry on a resin core having a foam structure, followed by drying, and then firing the resultant core in a non−oxidizing atmosphere, to thereby form the porous metal article. The porous metal article has excellent heat resistance, and is excellent in strength since the average pore diameter thereof is limited to 500 μm or less, and is useful as a substrate for an electrode, a catalyst carrier and a filter material. A composite material of the porous metal article with an Al alloy or a Mg alloy is excellent in the resistance to abrasion and seizure, and thus useful for various machine parts.
Inventors:
MATSUURA TAKAHIRO (JP)
HARADA KEIZO (JP)
HARADA KEIZO (JP)
Application Number:
PCT/JP2002/004181
Publication Date:
December 19, 2002
Filing Date:
April 25, 2002
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
MATSUURA TAKAHIRO (JP)
HARADA KEIZO (JP)
MATSUURA TAKAHIRO (JP)
HARADA KEIZO (JP)
International Classes:
B22F3/11; B22F3/26; C22C33/02; (IPC1-7): B22F5/10
Foreign References:
| JPH1046268A | 1998-02-17 | |||
| JPH0219406A | 1990-01-23 | |||
| JPH10183203A | 1998-07-14 |
Other References:
See also references of EP 1304185A4
Attorney, Agent or Firm:
Nakano, Minoru c/o Sumitomo Electric Industries (Ltd. 1-3 Shimaya 1-chom, Konohana-ku Osaka-shi Osaka, JP)
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