@inproceedings{oai:repo.qst.go.jp:00081305,
 author = {Pyon, S and Miyawaki, D and Tamegai, T and Kajitani, Hideki and Koizumi, Norikiyo and Awaji, S and Kito, H and Ishida, S and Yoshida, Y and Hideki, Kajitani and Norikiyo, Koizumi},
 book = {Journal of Physics: Conference Series},
 issue = {2020},
 month = {Jul},
 note = {We report the fabrication and characterizations of KCa2Fe4As4F2 round wires for the first time. Polycrystalline KCa2Fe4As4F2 powder was prepared by solid-state reaction. Superconducting wires were fabricated by powder-in-tube (PIT) method followed by hot-isostatic-press (HIP) technique. The self-field Jc of the KCa2Fe4As4F2 HIP wires fabricated at 700 and 740oC at a high pressure of 9 MPa for 0.5 h, reached 10 kAcm-2. Although high-pressure sintering at high temperatures enhanced the Jc and density of the core of the wires, X-ray diffraction and scanning electron microscopy–energy-dispersive X-ray spectroscopy analyses indicated that impurity phases were present both in the polycrystalline powder and in the core of the wire.},
 publisher = {IOP Publishing},
 title = {Fabrication and Characterizations of KCa2Fe4As4F2 Superconducting HIP Wires},
 volume = {1590},
 year = {2020}
}