Preparation of Bulky Bi(Pb)-Sr-Ca-Cu-O Superconductor by Magnetized Twin-Roll

1 February 1990

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

Vol. 29 (2A) , L284
https://doi.org/10.1143/jjap.29.l284

Abstract

A highly oriented (Bi, Pb)₂Sr₂Ca₂Cu₃O_x bulk superconductor has been prepared by magnetized twin-roll processing. In these bulks, plate-like crystal grains were highly oriented by a magnetic and mechanical force. The grain c-axes were parallel to the magnetic field and pressing directions. In fact, both critical current density (J _c) and orientation degree of the sample rolled under 2 T were higher than those of the sample rolled with no magnetic field. The magnetized twin-roll processing is effective not only in enhancing grain-orientation but also in packing to improve J _c.

Keywords

This publication has 17 references indexed in Scilit:

Texture analysis of magnetically aligned RBa₂Cu₃O_7-xby the pole figure technique
Superconductor Science and Technology, 1989
High Pressure Hot-Pressing of Y₁Ba₂Cu₃O_7-δ Superconductor
Japanese Journal of Applied Physics, 1989
High-Pressure Synthesis of a Bi-Pb-Sr-Ca-Cu-O Superconductor
Japanese Journal of Applied Physics, 1989
A “Mechanical Aligning” Method for Preparing High-J_c YBa₂Cu₃O_x Superconductors
Japanese Journal of Applied Physics, 1989
Densification and Grain-Orientation of Bi-Pb-Sr-Ca-Cu-O Superconductors by Hot-Pressing
Japanese Journal of Applied Physics, 1988
Preparation of the High-T_c Phase of Bi-Sr-Ca-Cu-O Superconductor
Japanese Journal of Applied Physics, 1988
High-T_c Phase Promoted and Stabilized in the Bi, Pb-Sr-Ca-Cu-O System
Japanese Journal of Applied Physics, 1988
Superconducting properties of aligned crystalline grains of $Y_{1} {Ba}_{2} {Cu}_{3} O_{7 - δ}$
Physical Review B, 1987
Anisotropic Upper Critical Fields of Orthorhombic Single Phase YBa₂Cu₃O_7-δ Studied Using Preferentially Oriented Pellets
Japanese Journal of Applied Physics, 1987
Possible highT c superconductivity in the Ba?La?Cu?O system
Zeitschrift für Physik B Condensed Matter, 1986