Microstructure of YBa2Cu3Oy subjected to severe plastic deformation by high pressure torsion

The influence of plastic deformation carried out by high pressure torsion at room temperature on the microstructure of the YBa 2 Cu 3 O y (123) compound prepared by standard ceramic technology and annealed at low temperature (200°C) in a water-saturated atmosphere has been studied. It has been shown...

Full description

Saved in:
Bibliographic Details
Published in:Physics of metals and metallography 2017-08, Vol.118 (8), p.773-781
Main Authors: Kuznetsova, E. I., Degtyarev, M. V., Zyuzeva, N. A., Bobylev, I. B., Pilyugin, V. P.
Format: Article
Language:English
Subjects:
Annealing
Ceramics
Chemistry and Materials Science
Diffusion
Materials Science
Metallic Materials
Microstructure
Phase Transformations
Phase transitions
Plastic deformation
Recovery
Recrystallization
Structure
Torsion
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The influence of plastic deformation carried out by high pressure torsion at room temperature on the microstructure of the YBa 2 Cu 3 O y (123) compound prepared by standard ceramic technology and annealed at low temperature (200°C) in a water-saturated atmosphere has been studied. It has been shown that the directional growth of recrystallized lamellar-shaped grains initiated by the 124–123 phase transformation takes place upon recovery (after deformation) annealing at 930°C in ceramics subjected to additional low-temperature annealing, which leads to the formation of the texture. A rodlike structure has been observed in samples prepared by standard technology, after deformation and recovery annealing (930°C).
ISSN:0031-918X
1555-6190
DOI:10.1134/S0031918X17080099