Effect of Plastic Deformation on the Formation of the Y[Ba.sub.2][Cu.sub.3][O.sub.y] Structure

Effect of Plastic Deformation on the Formation of the Y[Ba.sub.2][Cu.sub.3][O.sub.y] Structure

The structure of the Y[Ba.sub.2][Cu.sub.3][O.sub.y] (123) compound has been investigated after severe plastic deformation by high-pressure torsion performed at room temperature. Distinctive structural features of the samples prepared by standard synthesis and the samples (with increased critical cur...

Full description

Saved in:
Bibliographic Details
Published in:Physics of metals and metallography Vol. 118; no. 12; p. 1247
Main Authors: Kuznetsova, E.I, Krinitsina, T.P, Bobylev, I.B, Zyuzeva, N.A, Degtyarev, M.V
Format: Journal Article
Language:English
Published: Springer 01-12-2017
Subjects:
Annealing
Ceramics
High temperature superconductors
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The structure of the Y[Ba.sub.2][Cu.sub.3][O.sub.y] (123) compound has been investigated after severe plastic deformation by high-pressure torsion performed at room temperature. Distinctive structural features of the samples prepared by standard synthesis and the samples (with increased critical current density) after treatment at t = 200[degrees]C in water-saturated atmosphere have been revealed. It has been shown that a lamellar textured structure formed during the annealing of hydrated and deformed samples includes a superconducting orthorhombic phase with a high oxygen index and residual defects that can serve as pinning centers. Keywords: high-temperature superconductor, high-pressure torsion deformation DOI: 10.1134/S0031918X17120080
ISSN:0031-918X
DOI:10.1134/S0031918X17120080