Investigation of microstructure optimization in bulk YBCO and YBCO/Ag composite superconductors synthesized via hybrid IGP-Bridgman technique for enhanced critical current densities

We have investigated microstructural origins for enhanced critical current densities in YBCO and YBCO/Ag composite superconductors synthesized via the novel IGP-Bridgman hybrid technique for enhanced critical current densities. Through our investigations, we have observed that addition of Ag precipi...

Full description

Saved in:
Bibliographic Details
Published in:Materials today : proceedings 2019, Vol.19, p.2668-2671
Main Authors: Rangasamy, Parthasarathy, Vummethala, Seshubai
Format: Article
Language:English
Subjects:
Bridgman process
Critical current density Jc(H)
IGP method
Microstructure
YBCO superconductor
YBCO/Ag bulk composites
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We have investigated microstructural origins for enhanced critical current densities in YBCO and YBCO/Ag composite superconductors synthesized via the novel IGP-Bridgman hybrid technique for enhanced critical current densities. Through our investigations, we have observed that addition of Ag precipitates in YBCO/Ag bulk samples via the novel hybrid process deteriorates the sample microstructure whereas in pristine YBCO bulk samples superior current densities are observed. The microstructural origins for relative differences in critical currents have been traced. However, enhanced pinning due to paramagnetic centers lead to peculiar Jc(H) profiles for Ag added composites.
ISSN:2214-7853
2214-7853
DOI:10.1016/j.matpr.2019.10.121