Intercalated transition metal based solid lubricating composition and method of so forming
US4647386A · kind A · utility
Inventor
Key dates
| Filing date | Oct 3, 1983 |
| Grant date | Mar 3, 1987 |
| Priority date | — |
| Expiry date | Oct 3, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M2201/065
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A solid lubricating composition and method for forming such a composition are disclosed. The composition is formed by intercalating a transition metal that has been chemically reacted with chalcogen to form a layered structure. The transition metal is selected from niobium, tantalum, tungsten and/or an alloy including one or more, and the transition metal is chemically combined with chalcogen selected from sulfur, selenium and/or a combination which can also include tellurium to form a layered transition metal dischalcogenide prior to intercalation with a metal, preferably a coinage metal. The effect of intercalation is to expand the crystal lattice to create a composition having excellent lubricating characteristics the performance of which is not adversely effected by operation in a high temperature environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.