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:
Sep. 02, 2003

Filed:

Apr. 16, 2002
Applicant:
Inventors:

Zuhair A. Munir, Davis, CA (US);

Joseph N. Woolman, Davis, CA (US);

John J. Petrovic, Los Alamos, NM (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F 3/12 ; C22C 1/04 ;
U.S. Cl.
CPC ...
B22F 3/12 ; C22C 1/04 ;
Abstract

Alloys of transition metal suicides that contain one or more alloying elements are fabricated by a two-stage process involving mechanical activation as the first stage and densification and field-activated reaction as the second stage. Mechanical activation, preferably performed by high-energy planetary milling, results in the incorporation of atoms of the alloying element(s) into the crystal lattice of the transition metal, while the densification and field-activated reaction, preferably performed by spark plasma sintering, result in the formation of the alloyed transition metal silicide. Among the many advantages of the process are its ability to accommodate materials that are incompatible in other alloying methods.


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