Ti—Si—C—N piston ring coatings
US9523146B1 · kind B1 · utility
1Cited by
40References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2015 |
| Grant date | Dec 20, 2016 |
| Priority date | — |
| Expiry date | Jun 17, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J9/28
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A Ti—Si—C—N coating for a piston ring and a method forming such coating, wherein the deposited coating exhibits a thickness in the range of 10.0 micrometers to 20.0 micrometers and exhibits a coefficient of friction of less than 0.15 and a wear rate of less than 10×10−6 mm3/N/m. The coefficient of friction being measured on a Plint TE77 and the wear rate being measured against an alumina ball of 0.25 inches in diameter at a load of 1 N at 100 rpm in a dry environment. The deposited Ti—Si—C—N coating includes nanocrystalline phases in an amorphous matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.