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:
Dec. 12, 2000
Filed:
May. 29, 1998
Commissariat a l'Energie Atomique, Paris, FR;
Abstract
This invention relates to a multi-layer material that comprises a substrate made of aluminum, magnesium or their alloys, having possibly been subjected to a surface treatment, this substrate being provided with a coating comprising a tungsten based deposit and an under-layer--inserted between said substrate and said deposit--of a material having mechanical and thermo-mechanical properties intermediate to those of said substrate and said deposit. This under-layer is made up of at least one layer of a material chosen from among chromium, molybdenum, niobium, titanium, zirconium, their nitrides and carbides, solid solutions of carbon and of nitrogen in said metals, and steels and greatly improves the adherence of said coating to said substrate. The invention also relates to the anti-erosion, anti-abrasion, anti-wear coating comprising said tungsten based deposit and said under-layer.