High temperature sliding element and method for preventing high temperature sliding wear
US4902576A · kind A · utility
4Cited by
6References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 16, 1986 |
| Grant date | Feb 20, 1990 |
| Priority date | — |
| Expiry date | Oct 16, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C33/043
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A high temperature sliding element is provided with a metallic film formed of any one of metals Ni, Mn, Cr, Fe and Co, and alloys of these metals on a sliding surface of a substrate of carbide ceramics or nitride ceramics in accordance with physical vapor deposition. When the substrate and a sliding counterpart ceramic member are slid in a high temperature atmosphere 500.degree. C. or higher with the metallic film intervening therebetween, wear due to sliding motion between the substrate and the counterpart ceramic member can effectively be reduced. The metallic film forms an oxidized sliding surface layer at the high temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.