Enhanced flux pinning in superconductors by embedding carbon nanotubes with BSCCO materials
US5627140A · kind A · utility
28Cited by
4References
37Claims
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Key dates
| Filing date | May 19, 1995 |
| Grant date | May 6, 1997 |
| Priority date | — |
| Expiry date | May 19, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/90
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Enhanced flux pinning in superconductors is achieved by embedding carbon nanotubes into a superconducting matrix. The carbon nanotubes simulate the structure, size and shape of heavy ion induced columnar defects in a superconductor such as Bi.sub.2 Sr.sub.2 CaCu.sub.2 O.sub.8+x. The nanotubes survive at treatment temperatures of up to approximately 800.degree. C. both in oxygen containing and in inert atmospheres. The superconducting matrix with nanotubes is heat treated at a lower temperature than the temperature used to treat the best case pure superconductor material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.