Electrical contact material
US3933485A · kind A · utility
16Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 29, 1974 |
| Grant date | Jan 20, 1976 |
| Priority date | — |
| Expiry date | May 29, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C32/0021
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An alloy for composite electrical contact materials which is composed of 5 to 10 weight percent of tin and 1.0 to 6 weight percent of indium, the balance being silver, said alloy being subjected to an internal oxidation. The alloy may contain, when added by one or more other solute metal elements selected from zinc, antimony, lead and bismuth, as much as 6 to 15 weight percent of tin and said other solute metal elements in total in which the latter are less than 30 percent of the former. The alloy may also comprise up to 0.5 weight percent of ferrous or alkali earth metals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.