Non-precious ceramic alloy
US4249943A · kind A · utility
2Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1978 |
| Grant date | Feb 10, 1981 |
| Priority date | — |
| Expiry date | Oct 11, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C19/055
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An alloy composition for dental use containing, by weight, aluminum 0-3.0%, cobalt 0-20.0%, chromium 10.0-20.0%, manganese 0-1.5%, molybdenum 6.0-18.0%, nickel 58.5-77.0% and silicon 0-2.0%. The alloy retains the corrosion resistance properties found in nickel-chromium base alloys while having reduced yield strength typical of gold alloys thereby resulting in greater ease of grinding, polishing and manipulation. The alloy finds use as a porcelain substrate alloy and also as a crown and bridge or partial denture alloy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.