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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.

Patent No.:

US 10287646 B1

PDFFull Text
Date of Patent:
May. 14, 2019

Filed:

Apr. 09, 2014

Porous metal body and method for producing same

Applicants:

Sumitomo Electric Industries, Ltd., Osaka-shi, Osaka, JP;

Sumitomo Electric Toyama Co., Ltd., Imizu-shi, Toyama, JP;

Inventors:

Kazuki Okuno, Itami, JP;

Masatoshi Majima, Itami, JP;

Kengo Tsukamoto, Imizu, JP;

Hitoshi Tsuchida, Imizu, JP;

Hidetoshi Saito, Imizu, JP;

Assignees:

SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka-shi, Osaka, JP;

SUMITOMO ELECTRIC TOYAMA CO., LTD., Imizu-shi, Toyama, JP;

Attorney:

Drinker Biddle & Reath LLP

Primary Examiner:

Weiping Zhu

Int. Cl.
CPC ...
C21D 9/00 (2006.01); C25D 1/08 (2006.01); C25D 5/12 (2006.01); C25D 7/00 (2006.01); C22C 1/08 (2006.01); H01M 4/80 (2006.01); C25D 5/14 (2006.01); C25D 5/50 (2006.01); C25D 5/56 (2006.01); C25D 15/00 (2006.01); B22F 7/00 (2006.01); C22C 1/04 (2006.01); C22F 1/02 (2006.01); C22F 1/10 (2006.01); C22F 1/11 (2006.01); C22F 1/16 (2006.01); C23C 14/14 (2006.01); C23C 14/34 (2006.01); C23C 14/58 (2006.01); C25D 3/04 (2006.01); C23C 28/02 (2006.01); H01M 8/0232 (2016.01); C25D 3/06 (2006.01); C25D 3/12 (2006.01); C25D 3/30 (2006.01);
U.S. Cl.
CPC ...
C21D 9/0068 (2013.01); B22F 7/002 (2013.01); C22C 1/0433 (2013.01); C22C 1/08 (2013.01); C22F 1/02 (2013.01); C22F 1/10 (2013.01); C22F 1/11 (2013.01); C22F 1/16 (2013.01); C23C 14/14 (2013.01); C23C 14/34 (2013.01); C23C 14/5873 (2013.01); C23C 28/021 (2013.01); C23C 28/027 (2013.01); C23C 28/028 (2013.01); C25D 1/08 (2013.01); C25D 3/04 (2013.01); C25D 5/12 (2013.01); C25D 5/14 (2013.01); C25D 5/50 (2013.01); C25D 5/505 (2013.01); C25D 5/56 (2013.01); C25D 7/00 (2013.01); C25D 15/00 (2013.01); H01M 4/80 (2013.01); H01M 8/0232 (2013.01); B22F 2207/01 (2013.01); B22F 2999/00 (2013.01); C25D 3/06 (2013.01); C25D 3/12 (2013.01); C25D 3/30 (2013.01); Y02T 50/6765 (2018.05);
Abstract

Provided is a porous metal body having superior corrosion resistance to conventional metal porous bodies composed of nickel-tin binary alloys and conventional metal porous bodies composed of nickel-chromium binary alloys. The porous metal body has a three-dimensional network skeleton and contains at least nickel, tin, and chromium. The concentration of chromium contained in the porous metal body is highest at the surface of the skeleton of the porous metal body and decreases toward the inner side of the skeleton. In one embodiment, the chromium concentration at the surface of the skeleton of the porous metal body is more preferably 3% by mass or more and 70% by mass or less.

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