Patent · US Expired

Coated article

US7244493B2 · kind B2 · utility

2Cited by

8References

19Claims

0Family size

Assignee

Delphi Technologies · US

Inventors

William LaBarge · Bay City, US
Rick D. Kerr · Fenton, US
Russell Bosch · Gaines, US

Key dates

Filing date	Nov 12, 2004
Grant date	Jul 17, 2007
Priority date	—
Expiry date	Jun 22, 2025

Classification

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

Abstract

In one embodiment, a coated article comprises a substrate with a coating comprising diamond like carbon layer, wherein the diamond like carbon layer comprising carbon and sulfur as terminal sulfur functional groups, wherein greater than or equal to about 70 wt % of the carbon present in the diamond like carbon layer comprises a sp3 carbon-to-carbon bond. The diamond like carbon layer has a concentration gradient such that the diamond like carbon layer on a side toward the substrate comprises a lower concentration of sulfur than a surface of the diamond like carbon layer disposed on a side of the layer opposite the substrate. The surface comprises about 0.1 at % to about 15 at % sulfur.

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