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.:
Date of Patent:
Jul. 14, 2009
Filed:
Aug. 06, 2004
Angel Sanjurjo, San Jose, CA (US);
Eugene Thiers, San Mateo, CA (US);
Kai-hung Lau, Cupertino, CA (US);
Don L. Hildenbrand, Mountain View, CA (US);
Gopala N. Krishnan, Sunnyvale, CA (US);
Esperanza Alvarez, Menlo Park, CA (US);
Angel Sanjurjo, San Jose, CA (US);
Eugene Thiers, San Mateo, CA (US);
Kai-Hung Lau, Cupertino, CA (US);
Don L. Hildenbrand, Mountain View, CA (US);
Gopala N. Krishnan, Sunnyvale, CA (US);
Esperanza Alvarez, Menlo Park, CA (US);
SRI International, Menlo Park, CA (US);
Abstract
The present invention is generally directed towards a method for producing a solid metallic composition by reacting a gaseous metal halide with a reducing agent are described. In one embodiment, the method includes reacting a gaseous metal halide with a reducing agent in a manner effective to form a nonsolid reaction product, wherein the metal halide has the formula MX, in which M is a metal selected from a transition metal of the periodic table, aluminum, silicon, boron, and combinations thereof, X is a halogen, i is greater than 0, and the reducing agent is a gaseous reducing agent selected from hydrogen and a compound that releases hydrogen, and combinations thereof; and solidifying the reaction product, thereby forming a metallic composition comprising M that is substantially free from halides. The invention may be used to produce high-purity metallic compositions, particularly titanium particles and alloys thereof for use in powder metallurgy applications.