Fabrication of (Ba,Na)Fe2As2 round wires and tapes using HIP process

D. Miyawaki, S. Pyon, S. Awaji, H. Kajitani, N. Koizumi, H. Kito, S. Ishida, Y. Yoshida, T. Tamegai

Research output: Contribution to journalConference articlepeer-review

Abstract

We fabricated round wires and tapes of (Ba,Na)Fe2As2 using hot isostatic press (HIP) process, and evaluated their critical current density (Jc ). Polycrystalline powders were synthesized by two methods by mixing raw materials in a planetary ball mill or by using pre-synthesized precursors (BaAs, NaAs, Fe2As). Transport Jc of best wire reached 95 kA/cm2 under self-field and 40 kA/cm2 at 100 kOe. We also fabricated HIP tapes using the same powder and discuss their detailed characterizations. In particular, X-ray diffraction is extensively applied to the evaluation of the degree of texturing of the tape, and discuss its relationship with J c.

Original languageEnglish
Article number012027
JournalJournal of Physics: Conference Series
Volume1590
Issue number1
DOIs
Publication statusPublished - 2020 Jul 31
Event32nd International Symposium on Superconductivity, ISS 2019 - Kyoto, Japan
Duration: 2019 Dec 32019 Dec 5

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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