Fabrication of multifilamentary Y-Ba-Cu-O oxide superconductors

27 June 1988

journal article
research article
Published by AIP Publishing in Applied Physics Letters

Vol. 52 (26) , 2261-2262
https://doi.org/10.1063/1.99770

Abstract

Workability of Y‐Ba‐Cu‐O composite wires with a Ag sheath has been studied and multifilamentary Y‐Ba‐Cu‐O superconductors with a Ag matrix have been successfully fabricated. Observations of the wires with a scanning electron microscope reveal that as the areal reduction ratio R increases, the average Y‐Ba‐Cu‐O grain size decreases. The study on the workability of the composite wires reveals that composite wires consisting of the Y‐Ba‐Cu‐O powder and a Ag matrix can be rolled or drawn to any extent by a cold‐work process with intermediate annealings at 150 °C for R=∼10. Based on this study, we have succeeded in fabricating a 252 filament Y‐Ba‐Cu‐O wire which shows a T_c (onset) of ∼95 K.

Keywords

This publication has 4 references indexed in Scilit:

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