The structure of the YBa2Cu3Oy (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… Click to show full abstract
The structure of the YBa2Cu3Oy (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°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.
Journal Title: Physics of Metals and Metallography
Year Published: 2017
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