Method of making a superconductive fiber

Details Method of making a superconductive fiber Method of making a superconductive fiber

1992-06-09

1994-10-18

Fiorilla, Christopher A.

Superconductor technology: apparatus, material, process

Processes of producing or treating high temperature...

With glass forming, working, or treating

65444, 505430, 505450, 505500, H01L 3912, C03C 2502

Patent

active

053568710

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.

REFERENCES:
patent: 4975416 (1990-12-01), Onishi et al.
patent: 5158588 (1992-10-01), Pauling

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