Patent · US Expired

Diamond-like nanocomposite compositions

US6200675A · kind A · utility

61Cited by

1References

19Claims

0Family size

Assignee

N V BEKAERT SA · BE

Inventors

Dominique Neerinck · Hertsberge, BE
Arvind Goel · Buffalo, US

Key dates

Filing date	Mar 15, 1999
Grant date	Mar 13, 2001
Priority date	—
Expiry date	Mar 15, 2019

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/30
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The invention relates to an improved diamond-like nanocomposite composition comprising networks of a-C:H and a-Si:O wherein the H-concentration is between 40% and 80% of the C-concentration and having a coefficient of friction against steel which is smaller than 0.1 in air with a relative humidity up to 90%, or in water. The invention relates also to a process for depositing the composition on a substrate in a vacuum chamber. The composition comprises preferably 30 to 70 at % of C, 20 to 40 at % of H, 5 to 15 at % of Si and 5 to 15 at % of O and can be doped with transition metals.

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