Novel palladium-based alloys containing indium bismuth, silver and copper
US5051235A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 1990 |
| Grant date | Sep 24, 1991 |
| Priority date | — |
| Expiry date | Jan 8, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C5/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a novel palladium-based alloy. This palladium-based alloy comprises at least one additional element selected from indium, bismuth, silver and copper, in an amount sufficient to impart an acceptable resistance to corrosion by molten glass, preferably being essentially equivalent to that of platinum-rhodium 10% alloys. An alloy of this type can be used in the glass industry for making components which come into contact with molten glass, which preferably essentially contains no oxides less stable than the oxide of the additional element, such as lead oxide, because is has an excellent resistance to corrosion by molten glass and is less expensive than the platinum-rhodium 10% alloy normally used. Moreover, by the addition of at least one element selected from platinum (0-50% by weight), rhodium (0-20% by weight), iridium (0-20% by weight), ruthenium (0-20% by weight) and tin (0-20%), the mechanical strength at high temperature, especially the creep strength, is significantly improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.