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:
Apr. 15, 2008
Filed:
Mar. 09, 2005
Joerg Vetter, Bergisch Gladbach, DE;
Joerg Vetter, Bergisch Gladbach, DE;
Metaplas Ionon Oberflachenveredelungstechnik GmbH, Bergisch Gladbach, DE;
Abstract
The carbon-containing hard coating (1) according to the invention comprises nano-crystalline grains being separated from each other by grain boundaries, wherein said hard coating comprises aluminum (Al), at least one additional metal (Me1, Me2), carbon (C) and at least one further element (E1, E2) and has the chemical composition:(AlMe1Me2)CE1E2wherein Me1 is a metal, and Me2 is a metal, with x>0.4 and x+y+z=1 and y,z≧0, and E1 and E2 are further chemical elements with 1>u>0 and u+v+w=1 and v,w≧0. The grain boundaries have a higher concentration of carbon atoms than the nano-crystalline grains.