Open AccessFabrication of (Ba,Na)Fe2As2 round wires and tapes using HIP process
Author(s) -
Daisuke Miyawaki,
Sunseng Pyon,
Satoshi Awaji,
Hideki Kajitani,
N. Koizumi,
Hijiri Kitô,
Shigeyuki Ishida,
Yoshiyuki Yoshida,
T. Tamegai
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1590/1/012027
Subject(s) - fabrication , materials science , ball mill , crystallite , raw material , composite material , diffraction , metallurgy , optics , chemistry , physics , medicine , alternative medicine , organic chemistry , pathology
We fabricated round wires and tapes of (Ba,Na)Fe 2 As 2 using hot isostatic press (HIP) process, and evaluated their critical current density ( J c ). Polycrystalline powders were synthesized by two methods by mixing raw materials in a planetary ball mill or by using pre-synthesized precursors (BaAs, NaAs, Fe 2 As). Transport J c of best wire reached 95 kA/cm 2 under self-field and 40 kA/cm 2 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 .