Patent · US Active

Coated article and method for making the same

US8747998B2 · kind B2 · utility

2Cited by
2References
6Claims
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Key dates

Filing dateJul 11, 2011
Grant dateJun 10, 2014
Priority date
Expiry dateDec 9, 2031

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/31678
  • WIPO fieldSurface technology, coating
  • WIPO sectorChemistry

Abstract

A coated article is described. The coated article includes an aluminum or aluminum alloy substrate and a compound corrosion resistant layer formed on the substrate. The compound corrosion resistant layer includes a plurality of first non-crystalline films and an equal number of second non-crystalline films. Each the first non-crystalline film interleaves with each the second non-crystalline film. The first non-crystalline film is an aluminum nitride film or an aluminum oxide film. The second non-crystalline film is a silicon nitride film or a silicon dioxide film. A method for making the coated article is also described.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.