A METAL FOAM BODY HAVING AN OPEN-POROUS STRUCTURE AS WELL AS A METHOD FOR THE PRODUCTION THEREOF

Title:

A METAL FOAM BODY HAVING AN OPEN-POROUS STRUCTURE AS WELL AS A METHOD FOR THE PRODUCTION THEREOF

Document Type and Number:

WIPO Patent Application WO2005095029

Kind Code:

A3

Abstract:

The invention relates to metal foam bodies having an open-porous structure as well as a method for producing thereof wherein according to the set task such metal foam bodies are to be provided_. which achieve an increased oxidation resistance and/or an increased corrosion resistance. With the metal foam bodies having an open-porous structure according to the invention, for such metal foam bodies within the webs of the open-porous structure there are channel shaped cavities formed as being determined by the production. At the same time, the webs and cavities will be provided with a metallic protective layer made of a material differing from the metallic starting material of the foam body or the channel shaped cavities will be filled with this material. For this, an adequate metal powder or an alloy component being included in the powder will be used which becomes liquid and forms a liquid phase respectively during thermal treatment below a temperature at which the metal of the base foam body is melting. Due to the capillary action wetting the surfaces of channel shaped cavities within the webs can be achieved such that after cooling down a metallic protective layer is forming or the channel shaped cavities are filled.

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WO/2005/092586	MOULD FOR PREPARING LARGE STRUCTURES, METHODS OF PREPARING MOULD AND USE OF MOULD
JPH0987705	PRODUCTION OF POROUS METAL LAMINATE
JP5703503	Method for manufacturing a porous structure

Inventors:

NAUMANN DIRK (CA)
BOEHM ALEXANDER (DE)
WALTHER GUNNAR (DE)

Application Number:

PCT/EP2005/002435

Publication Date:

June 08, 2006

Filing Date:

March 08, 2005

Export Citation:

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Assignee:

INCO LTD (CA)
TEN FORSCHUNG EV FRAUNHOFER (DE)
NAUMANN DIRK (CA)
BOEHM ALEXANDER (DE)
WALTHER GUNNAR (DE)

International Classes:

B22F3/11

Foreign References:

US4155755A	1979-05-22
EP0721994A2	1996-07-17
EP1065020A1	2001-01-03

Other References:

PATENT ABSTRACTS OF JAPAN vol. 1997, no. 01 31 January 1997 (1997-01-31)

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