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  4. Structure analysis of the YBCO layer in Ag/YBCO/metal oxide buffer/Hastelloy composite tape before and after 107 MeV Kr17+ irradiation
 
research article

Structure analysis of the YBCO layer in Ag/YBCO/metal oxide buffer/Hastelloy composite tape before and after 107 MeV Kr17+ irradiation

Suvorova, Elena I.  
•
Cantoni, Marco  
•
Buffat, Philippe A.  
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2014
Acta Materialia

The effects of 107 MeV Kr-84(17+) ion irradiation on YBa2Cu3O7-x-based second-generation coated conductors were investigated using a combination of transmission electron microscopy, diffraction and X-ray energy dispersive spectrometry. Defects 3-5 nm in diameter formed due to irradiation with relatively low fluences (similar to 2 x 10(10) and similar to 6 x 10(10) cm(-2)). Analysis of electron microscopy images and spectrometry data led to the conclusion that radiation defects are voids approximately 3 nm in diameter. Heavy ion irradiation results in the significant enhancement of YBCO/buffer oxides adhesion to the Hastelloy substrate, the reduction of stresses and the formation of a crack-free structure in the YBCO layer. The use of low-dose irradiation enables the critical current to be increased without lowering the transition temperature. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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Type
research article
DOI
10.1016/j.actamat.2014.04.042
Web of Science ID

WOS:000340854200005

Author(s)
Suvorova, Elena I.  
Cantoni, Marco  
Buffat, Philippe A.  
Didyk, Alexander Yu.
Antonova, Landysh Kh.
Troitskii, Alexey V.
Mikhailova, Galina N.
Date Issued

2014

Publisher

Pergamon-Elsevier Science Ltd

Published in
Acta Materialia
Volume

75

Start page

71

End page

79

Subjects

Superconductor

•

Ion irradiation

•

Defects

•

Transmission electron microscopy

•

X-ray energy-dispersive spectrometry

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
CIME  
Available on Infoscience
October 23, 2014
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/107777
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