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:
Oct. 17, 2023

Filed:

Jul. 20, 2020
Applicant:

Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);

Inventors:

Michael Paul Rowe, Pinckney, MI (US);

Nikhilendra Singh, Ann Arbor, MI (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C 33/02 (2006.01); B22F 7/02 (2006.01); B22F 7/00 (2006.01); B22F 1/054 (2022.01); B22F 7/04 (2006.01);
U.S. Cl.
CPC ...
C22C 33/0207 (2013.01); B22F 1/054 (2022.01); B22F 7/008 (2013.01); B22F 7/02 (2013.01); B22F 2007/042 (2013.01); B22F 2301/35 (2013.01); B22F 2302/40 (2013.01);
Abstract

Carbon fiber reinforced steel matrix composites have carbon fiber impregnated in the steel matrix and chemically bonded to the steel. Chemical bonding is shown by the presence of a unique amorphous carbon layer at the carbon fiber/steel interface, and by canting of steel crystal edges adjacent to the interface. Methods for forming carbon fiber reinforce steel composites include sintering steel nanoparticles around a reinforcing carbon fiber structure, thereby chemically bonding a sintered steel matrix to the carbon fiber. This unique bonding likely contributes to enhanced strength of the composite, in comparison to metal matrix composites formed by other methods.


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