Ag-Sheathed Bi-Pb-Sr-Ca-Cu-O Superconducting Wires with High Critical Current Density

1 January 1989

journal article
Published by IOP Publishing in Japanese Journal of Applied Physics

Vol. 28 (1A) , L82-84
https://doi.org/10.1143/jjap.28.l82

Abstract

Critical current density (J _c) and its dependence on magnetic field in Ag-sheathed Bi-Pb-Sr-Ca-Cu-O superconducting wire was improved by grain alignment and homogenization of the high-T _c phase (110 K). The maximum transport current density at 77.3 K in a zero magnetic field was increased to 6930 A/cm². The magnetic field dependence of J _c (0.1 µV/cm criterion) was summarized as follows: 1660 A/cm² (I ⊥H, a-b plane ∥H, 0.1 T), 900 A/cm² (I ⊥H, a-b plane ⊥H, 0.1 T). We found that the grain boundaries were bonded strongly in the direction of alignment.

Keywords

This publication has 2 references indexed in Scilit:

High-T_c Phase Promoted and Stabilized in the Bi, Pb-Sr-Ca-Cu-O System
Japanese Journal of Applied Physics, 1988
A New High-T_c Oxide Superconductor without a Rare Earth Element
Japanese Journal of Applied Physics, 1988