Nb--Sn precursors having controlled impurities and method of making
US5670204A · kind A · utility
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14References
14Claims
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Assignee
Inventors
Key dates
| Filing date | Jun 26, 1995 |
| Grant date | Sep 23, 1997 |
| Priority date | — |
| Expiry date | Jun 26, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S505/818
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Nb--Sn precursor articles are described that include a Nb alloy article that is at least partially coated with a layer of a Sn alloy, such as a Sn--Cu alloy. The precursor articles described herein have a controlled concentration of the impurity elements As and S in the Sn alloy layer. The concentration of these elements in the Sn alloy layer is less than or equal to 50 ppm by weight. This invention also describes a method for making Nb--Sn precursor articles having a controlled concentration of As and S impurities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.