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:
Jun. 19, 2012
Filed:
Apr. 16, 2007
Roger S. Storm, Tucson, AZ (US);
Vladimir Shapovalov, Albuquerque, NM (US);
James C. Withers, Tucson, AZ (US);
Raouf Loutfy, Tucson, AZ (US);
Roger S. Storm, Tucson, AZ (US);
Vladimir Shapovalov, Albuquerque, NM (US);
James C. Withers, Tucson, AZ (US);
Raouf Loutfy, Tucson, AZ (US);
Materials & Electrochemical Research Corp., Tucson, AZ (US);
Abstract
A method of material treatment in which the surface of a metal substrate is converted to a composite structure of the metal and its nitride or carbide utilizing a high temperature chemically active thermal plasma stream, and the product obtained from that method. The complex thermal plasma contains controllable additions of active gas, liquid or solid substances. The surface layer obtained is functionally graded to the substrate resulting in an excellent bond that resists delamination and spalling, and provides a significant increase in hardness, wear and erosion resistance, and corrosion resistance, and a decrease in coefficient of friction.