Comparison of the superconducting properties of Y-Ba-Cu-O and Y-Ba-Cu-O-Ag bulk superconductors


Type
Conference Object
Change log
Authors
Congreve, JVJ 
Shi, YH 
Dennis, AR 
Durrell, JH 
Cardwell, DA 
Abstract

The widespread use of RE-Ba-Cu-O [(RE)BCO] bulk superconductors, where RE=Y, Gd or Sm, in practical applications requires large single grains that exhibit uniform superconducting properties. Until recently, however, it was difficult to grow successfully YBCO-Ag bulk materials in the required single grain form, due primarily to the relative complexity of the top seeded melt growth process (TSMG) and the introduction of an alloying element (Ag) to the precursor composition. In most cases, alloying elements are used to improve the mechanical properties of the bulk superconductor whilst, at the same time, aim to cause minimal detrimental effect on the superconducting properties of the fully processed sample. In this work we investigate the effect of the addition of silver to YBCO on the superconducting properties of the bulk single grain, including trapped field, T c and J c , and on the sample microstructure.

Description
Keywords
34 Chemical Sciences, 51 Physical Sciences, 5104 Condensed Matter Physics
Journal Title
IOP Conference Series: Materials Science and Engineering
Conference Name
CEC/ICMC 2019
Journal ISSN
1757-8981
1757-899X
Volume Title
502
Publisher
IOP Publishing
Sponsorship
EPSRC (1619794)
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