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:
Aug. 04, 1987
Filed:
Dec. 06, 1984
Applicant:
Inventor:
Bogdan Zega, Geneva, CH;
Assignee:
Battelle Development Corporation, Columbus, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
427 47 ; 20419231 ; 428698 ;
Abstract
This hard layer is obtained by incorporating a maximum of 2 weight % of nitrogen in Mo or W by the technique of cathode sputtering in a nitrogen reactive medium, the temperature at which the nitrogen incorporation occurs which is in the order of 300.degree. C. preventing the nitrogen to precipitate at the grains-joints during cooling, so that the layer only comports a cubic centered Mo or W phase, thus preserving its own ductility to the metal.