Method of decoupling an HTc superconductive multi-filament strand having a silver-based matrix, and a multifilament strand made thereby
US6542760B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2001 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Apr 24, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49014
Abstract
The invention relates a powder in tube type method of making an HTc superconductive multifilament strand having a silver-based matrix, in which:a first envelope is filled with powder reagents for an HTc superconductor;the resulting billet is drawn down into a monofilament strand;said monofilament strand is cut up into lengths and a secondary envelope is filled with the resulting lengths, thereby making a multifilament billet which is drawn down into a multifilament strand;said multifilament strand is cut up into lengths and a new envelope is filled with the resulting lengths, thereby making a new multifilament billet which is drawn down into a new multifilament strand; andit is shaped and subjected to heat treatment;according to the invention, at least one face of the monofilament strand is electrically insulated; andduring the first multifilament step the secondary envelope is filled with the resulting insulated lengths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.