Superconducting Performance, Microstructure and SEM by EDX Analysis of IG Processed YBa2Cu3Oy Bulk Superconductors by Top and Interior Seeding Methods

N. Ide, M. Muralidhar, M. Radusovska, P. Diko, M. Jirsa, M. Murakami

Research output: Contribution to journalConference article

Abstract

The top-seeded and interior seeded methods, together with infiltration growth (IG) technique were used to produce YBa2Cu3Oy (Y-123) samples with Y2BaCuO5 (Y-211) secondary phase particles. Tc (onset) was around 91.5. K. When interior seeding process was used, a complete growth of Y-123 single grain starting at the lower part of the bulk was observed by optical microscopy. The Y-211 particles dispersion was quite uniform in lower and upper parts of the samples, both in the a- and c-axis growth sectors, both at the beginning and end of the grain growth. In the sample produced by infiltration growth and interior seeding the critical current density at 77 K with H//c-axis was 44,000 A/cm2 and 7,750 A/cm2 in self-field and 2 T, respectively. It is a good basis for optimization of processing conditions, which can further improve the superconductor's performance and enable to grow large-size Y-123 bulks.

Original languageEnglish
Article number012053
JournalJournal of Physics: Conference Series
Volume871
Issue number1
DOIs
Publication statusPublished - 2017 Jul 26
Event29th International Symposium on Superconductivity, ISS 2016 - Tokyo, Japan
Duration: 2016 Dec 132016 Dec 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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