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Proceedings Paper

Infiltration growth processing of bulk mixed REBa2Cu3O7-x superconductors: nano-metal oxides and rare earth elements effects on microstructural properties
Author(s): S. Pavan Kumar Naik; K. Nagaveni; P. Missak Swarup Raju; M. Muralidhar; M. R. Koblischka; A. Koblischka-Veneva; T. Oka; Yuki Iwasa; Hiraku Ogino; Hiroshi Eisaki; M. Murakami
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Paper Abstract

The REBa2Cu3O7-x (REBCO/YBCO) based high-temperature superconductors are promising materials for high magnetic field and energy applications due to their effective flux pinning abilities. The superconducting properties of these materials strongly depend on the microstructure, which could be engineered by the fabrication methods, and incorporating various dopants. Infiltration growth (IG) process is currently evolving and superior to the standard melt growth (MG) technique addressing various inherent and unwanted problems. However, the IG technique is complex as compared to conventional MG technique, and for high reproducibility, many parameters need to be optimized for every system. In this paper, we present the engineering of the final microstructure with various nanometric metal oxides to the bulk YBCO/REBCO materials aiming to improve the field dependence of the superconducting properties. The effect of introducing various RE elements in IG processed YBCO/GdBCO bulk superconductors, and the evolution of microstructures supported by thorough elemental analysis will be discussed. Emphasis will be given to the problems involved in the growth of mixed REBCO products in the IG process and to the microstructural properties at various stages of processing the bulk samples.

Paper Details

Date Published: 14 May 2019
PDF: 8 pages
Proc. SPIE 11054, Superconductivity and Particle Accelerators 2018, 110540H (14 May 2019); doi: 10.1117/12.2525209
Show Author Affiliations
S. Pavan Kumar Naik, National Institute of Advanced Industrial Science and Technology (Japan)
Shibaura Institute of Technology (Japan)
K. Nagaveni, Government College, Anantapur (India)
P. Missak Swarup Raju, Gitam Univ. (India)
M. Muralidhar, Shibaura Institute of Technology (Japan)
M. R. Koblischka, Shibaura Institute of Technology (Japan)
A. Koblischka-Veneva, Shibaura Institute of Technology (Japan)
T. Oka, Shibaura Institute of Technology (Japan)
Yuki Iwasa, National Institute of Advanced Industrial Science and Technology (Japan)
Hiraku Ogino, National Institute of Advanced Industrial Science and Technology (Japan)
Hiroshi Eisaki, National Institute of Advanced Industrial Science and Technology (Japan)
M. Murakami, Shibaura Institute of Technology (Japan)

Published in SPIE Proceedings Vol. 11054:
Superconductivity and Particle Accelerators 2018
Dariusz Bocian; Ryszard S. Romaniuk, Editor(s)

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