Microstructures of YBa2Cu3Oy Layers Deposited on Conductive Layer-Buffered Metal Tapes
Publication date: 2016 Source:Physics Procedia, Volume 81 Author(s): Ataru Ichinose, Masayuki Hashimoto, Shigeru Horii, Toshiya Doi REBa2Cu3Oy (REBCO; RE: rare-earth elements)-coated conductors (CCs) have high potential for use in superconducting devices. In particular, REBCO CCs are useful for superconducting devices working at relatively high temperatures near 77K. The important issues in their applications are high performance, reliability and low cost. To date, sufficient performance for some applications has almost been achieved by considerable efforts. The establishment of the reliability of superconducti...
Source: Physics Procedia - May 9, 2016 Category: Physics Source Type: research
Joint of REBa2Cu3O7-δ Coated Conductors Using Metal Organic Deposition
Publication date: 2016 Source:Physics Procedia, Volume 81 Author(s): K. Hiramatsu, R. Teranishi, K. Yamada, Y. Sato, K. Kaneko Joint techniques connecting REBa2Cu3O7-δ(REBCO) coated conductors (CCs) are required to fabricate long length CCs and to repair locally damaged one. Two pieces of REBCO CC were attempted to be jointed using a metal organic deposition (MOD) method. The starting solution for YBCO layer was coated on GdBCO layer of CCs and calcined to fabricate precursor films, two of which were stuck together in a face to face manner, and then these films were pressurized and crystallized to joint them...
Source: Physics Procedia - May 9, 2016 Category: Physics Source Type: research
Jointing of Coated Conductors by Using Nano-particle Metal Pastes
Publication date: 2016 Source:Physics Procedia, Volume 81 Author(s): Tsuyoshi Nakanishi, Takato Machi, Teruo Izumi, Ryo Teranishi, Tomohiro Kato, Takeharu Kato, Tsukasa Hirayama Development of a jointing technique of coated conductors is important for all applications, such as superconducting magnets, cables, etc. Low resistance jointing techniques by means of silver diffusion [1] and for superconducting joints[2] have been reported so far. Since these processes were carried out at higher temperatures than the O2 annealing temperature for appropriate carrier doping to the REBa2Cu3O7-d (REBCO) crystals and...
Source: Physics Procedia - May 9, 2016 Category: Physics Source Type: research
Fabrication of GdBa2Cu3Oy Films by Liquid-phase-assisted Metal-organic Deposition Using Fluorine-free Solutions
Publication date: 2016 Source:Physics Procedia, Volume 81 Author(s): Y. Okabe, Y. Yoshikawa, R. Kita, H. Kubo, O. Miura, K. Yamada, K. Kaneko The fabrication of GdBa2Cu3O y (GdBCO) superconducting films by liquid-phase-assisted metal-organic deposition (LPA-MOD) was investigated as a new technique for the growth of thicker MOD films using fluorine-free solutions. A 300nm thick GdBCO film with a strong c-axis orientation was successfully grown on a MOD-GdBCO seed layer using Gd-Ba-Cu-O solution layers. A 600nm thick LPA-MOD GdBCO film had a critical current density (J c) of 1.28 MA/cm2, which is higher th...
Source: Physics Procedia - May 9, 2016 Category: Physics Source Type: research
Development of Long Coated Conductors with High In-field Ic Performance by PLD Method at High Production Rate
Publication date: 2016 Source:Physics Procedia, Volume 81 Author(s): Akira Ibi, Tomo Yoshida, Teruo Izumi, Yuh Shiohara, Daisaku Yokoe, Takeharu Kato, Tsukasa Hirayama We fabricated short samples and a 93 m long coated conductor (C. C.) of EuBa2Cu3O7-δ (EuBCO) with BaHfO3 (BHO) by the IBAD and the PLD methods, which exhibited the high in-field minimum I c value, (I c(min)), performance of 141.2 (77K in 3 T) and 411.3 (65K in 3 T) A/cm-w for a short sample, and 133.9 (77K in 3 T) A/cm-w for 93 m long C. C. with 3.6μm in thickness, respectively. Moreover, this long EuBCO with BHO coated conductor also sho...
Source: Physics Procedia - May 9, 2016 Category: Physics Source Type: research
