Method of making a superconductive fiber
US5356871A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1992 |
| Grant date | Oct 18, 1994 |
| Priority date | — |
| Expiry date | Jun 9, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N60/0801
Abstract
A method of making a high critical temperature superconductive fiber by fiber drawing a material of the family Bi.sub.x Pb.sub.y Sr.sub.2 Ca.sub.2 Cu.sub.3 O.sub.z where 1.9.ltoreq. x+y.ltoreq. 2.3. In the method a preform is made, fiber drawing is performed, and the resulting fiber is annealed in air, wherein said preform is constituted by a block of vitreous material having the formula Bi.sub.x P.sub.y Sr.sub.2 Ca.sub.2 Cu.sub.3 O.sub.z where: 1.9.ltoreq. x+y.ltoreq. 2.3 and a tube surrounding said block and made of a vitreous material having the formula Bi.sub.x' Sr.sub.2 Ca.sub.1 Cu.sub.2 O.sub.z' with 1.5.ltoreq. x'.ltoreq. 2.2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.