Method for making an insulated superconductor and article produced thereby
US4073666A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1976 |
| Grant date | Feb 14, 1978 |
| Priority date | — |
| Expiry date | Sep 9, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49014
Abstract
A method and article produced thereby are disclosed wherein the method produces a multi-filament superconductor having an insulation capable of withstanding extended heat treatment. According to the invention, a plurality of superconductor forming rods and a plurality of rods of normally conductive material are packed into a can made of a ductile material such as copper and having its interior lined with a valve metal such as tantalum. This assembly is extruded and drawn to a desired size as is known in the art. The ductile metal exterior layer is then removed to expose the valve metal. The exposed valve metal is thereafter oxidized to form an insulating oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.