Devices and systems based on novel superconducting material
US6630425B1 · kind B1 · utility
3Cited by
0References
4Claims
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Assignee
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Key dates
| Filing date | Mar 18, 1987 |
| Grant date | Oct 7, 2003 |
| Priority date | — |
| Expiry date | Mar 18, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S505/884
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Superconducting copper oxides of the perovskite structure are modified to have mixed occupancy of a cation site, thereby resulting in increased limits in critical field and/or critical current. Mixed occupancy may be observed in terms of increased resistivity as the superconducting material reverts to a nonsuperconducting state. A significant advantage, at least for preferred compositions, derives from the fact that critical temperature is unaffected relative to the prototypical material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.