Microstructure of Y[Ba.sub.2][Cu.sub.3][O.sub.6.8] after low-temperature annealing and subsequent restoration

Microstructure of Y[Ba.sub.2][Cu.sub.3][O.sub.6.8] after low-temperature annealing and subsequent restoration

Transmission electron microscopy and electron back-scattered diffraction (EBSD) analysis have been used to study the microstructure of the Y[Ba.sub.2][Cu.sub.3][O.sub.6.8] compound, which is formed during low- temperature heat treatment in a humid atmosphere and after restoring annealing at T = 930°...

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Bibliographic Details
Published in:Physics of metals and metallography Vol. 115; no. 8; p. 793
Main Authors: Kuznetsova, E.I, Krinitsina, T.P, Bobylev, I.B, Zyuzeva, N.A, Romanov, E.P
Format: Journal Article
Language:English
Published: Springer 01-08-2014
Subjects:
Analysis
Annealing
Magnetic fields
Superconductors
Online Access:Get full text
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Summary:Transmission electron microscopy and electron back-scattered diffraction (EBSD) analysis have been used to study the microstructure of the Y[Ba.sub.2][Cu.sub.3][O.sub.6.8] compound, which is formed during low- temperature heat treatment in a humid atmosphere and after restoring annealing at T = 930°C. It has been shown that structural defects formed after annealing at 200°C remain after short annealing at 930°C and can serve as pinning centers that favor the improvement of critical characteristics of the material. The restoration of the initial structure is accompanied by the recrystallization of the material. Keywords: high-temperature supercomductivity, structure defects, microstructure, pinning centers. DOI: 10.1134/S0031918X14080092
ISSN:0031-918X
DOI:10.1134/S0031918X14080092