Bi-Pb-Sr-Ca-Cu-O Superconducting Fibers Drawn from Melt-Quenched Glass Preforms
Abstract
Bi-Pb-Sr-Ca-Cu-O glass fibers were drawn from melt-quenched glass preforms by the method that is ordinarily applied to optical fiber fabrication. The drawn fibers were very flexible, and their surfaces were smooth. The glass fibers were crystallized by annealing and had superconducting properties. The annealed (1133 K, 240 hour) Bi1.6Pb0.4Sr2Ca2Cu3Ox fiber exhibited superconductivity with a Tc(zero) of 68 K and a critical current density (30 K, zero magnetic field) of 22 A/cm2.
- Publication:
-
Japanese Journal of Applied Physics
- Pub Date:
- January 1990
- DOI:
- 10.1143/JJAP.29.L64
- Bibcode:
- 1990JaJAP..29L..64O
- Keywords:
-
- Bismuth Oxides;
- Copper Oxides;
- Current Density;
- Glass Fibers;
- High Temperature Superconductors;
- Optical Fibers;
- Annealing;
- Calcium Oxides;
- Strontium Compounds;
- Superconductivity;
- Solid-State Physics