Effect of Plastic Deformation on the Formation of the YBa2Cu3O y Structure

被引：1
作者：
Kuznetsova, E. I. [1 ]
Krinitsina, T. P. [1 ]
Bobylev, I. B. [1 ]
Zyuzeva, N. A. [1 ]
Degtyarev, M. V. [1 ]
机构：
[1] Russian Acad Sci, Mikheev Inst Met Phys, Ural Branch, Ul S Kovalevskoi 18, Ekaterinburg 620990, Russia
来源：
PHYSICS OF METALS AND METALLOGRAPHY | 2017年 / 118卷 / 12期
关键词：
high-temperature superconductor; high-pressure torsion deformation; CRITICAL PARAMETERS; GROWTH; MECHANISM;
D O I：
10.1134/S0031918X17120080
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The structure of the YBa2Cu3O (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 = 200A 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.
引用
收藏
页码：1247 / 1254
页数：8
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