The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 24, 2016

Filed:

Aug. 28, 2013
Applicants:

Alantum, Seongnam, KR;

Fraunhofer-gesellschaft Zur Förderung Der Angewandten Forschung E.v., München, DE;

Inventors:

Gunnar Walther, Dresden, DE;

Burghardt Klöden, Dresden, DE;

Juliane Böhm, Hänichen, DE;

Tilo Büttner, OT Hetzdorf, DE;

Thomas Weissgärber, Dresden, DE;

Bernd Kieback, Possendorf, DE;

Arne Boden, Dresden, DE;

Hans-Dietrich Böhm, Dresden, DE;

Hyuntae Kim, Seongnam, KR;

James Choi, Seongnam, KR;

Myungjoon Jang, Seongnam, KR;

Alexander Böhm, Sauerlach, DE;

Stefan Fröhlich, Sauerlach, DE;

Winfried Dölling, Sauerlach, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F 3/11 (2006.01); B32B 5/18 (2006.01); C22C 38/06 (2006.01); C22C 1/08 (2006.01); C22C 33/02 (2006.01); B22F 3/10 (2006.01);
U.S. Cl.
CPC ...
B32B 5/18 (2013.01); B22F 3/1146 (2013.01); C22C 1/08 (2013.01); C22C 33/0285 (2013.01); C22C 38/06 (2013.01); B22F 3/1021 (2013.01); B22F 2998/10 (2013.01); Y10T 428/12479 (2015.01);
Abstract

Disclosed are an open-porous metal foam and a method for manufacturing the same. An open-porous metal foam according to an exemplary embodiment of the present invention is made of an iron-based alloy including 15 wt % or more of chrome and 5 wt % or more of aluminum. The open-porous metal foam is a semi-product that is formed of iron or the iron-based alloy that does not include chrome and aluminum or includes a smaller amount of chrome and aluminum in the powder when manufacturing, and the surface and the open pore thereof are uniformly coated with the powder of the iron-chrome-aluminum alloy and the organic binding agent. When heat treatment is performed under a reduction atmosphere, sintering is performed. In this case, the metal foam body that is formed of the iron-chrome-aluminum alloy is obtained by compensating concentrations of alloy elements between the semi-product and the powder by diffusion, and a content of chrome and aluminum in the metal foam is smaller than a content of chrome and aluminum included in a starting alloy of the used powder.


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