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Structure Defects Formed upon the Hydrogenation of YBa2Cu3Oy Single Crystals

Structure Defects Formed upon the Hydrogenation of YBa2Cu3Oy Single Crystals

Authors :
E. I. Kuznetsova
I. B. Bobylev
N. A. Zyuzeva
S. V. Naumov
T. P. Krinitsina
Source :
Physics of Metals and Metallography. 121:554-560
Publication Year :
2020
Publisher :
Pleiades Publishing Ltd, 2020.

Abstract

The fine structure of YBa2Cu3Oy single crystals with a different oxygen content subjected to a low-temperature hydrogenation have been investigated by transmission electron microscopy. It has been shown that as a result of the action of hydrogen at T = 150°ะก, a partial reduction of copper occurs, accompanied by the precipitation of Cu crystallites of ~100 nm in size and the formation of various structural defects. The geometric configuration of the precipitated crystallites has been considered. The results obtained show that hydrogenation is a method that makes it possible to control the structure by introducing nanosized inclusions and defects, which can be pinning centers of the magnetic vortices.

Details

ISSN :
15556190 and 0031918X
Volume :
121
Database :
OpenAIRE
Journal :
Physics of Metals and Metallography
Accession number :
edsair.doi...........f0a7430a6aa714b52421108ab8132690
Full Text :
https://doi.org/10.1134/s0031918x20060101