TY - JOUR
T1 - Joint properties of REBCO coated conductors
AU - Maebatake, T.
AU - Ichinose, Y.
AU - Yamada, K.
AU - Mori, N.
AU - Teranishi, R.
AU - Inoue, M.
AU - Kiss, T.
AU - Yoshizumi, M.
AU - Izumi, T.
AU - Kaneko, K.
AU - Munetoh, S.
AU - Mukaida, M.
N1 - Funding Information:
This work was supported by the New Energy and Industrial Technology Development Organization (NEDO) as Materials and Power Application of Coated Conductors (M-PACC) through International Superconductivity Technology Center (ISTEC). The authors would like to thank N. Chikumoto, N. Sakai (SRL-ISTEC, Japan) and T. Yoshimoto (Kyushu University) for the cooperation in this study.
PY - 2011/11
Y1 - 2011/11
N2 - We investigated joint properties of REBCO (REBa2Cu 3O7-X, RE = rare earth element) coated conductors using a diffusion joint process. Two pieces of the coated conductor tapes with stabilizing silver layer on REBCO were overlapped in a face to face manner, which were pressurized and heat-treated at about 623-673 K in oxygen atmosphere. The joint resistance for YBCO tape was about 6.5 nΩ cm 2 at 77 K, on the other hand, that for GdBCO tape was about 37 nΩ cm2 which was higher than YBCO. From the results of both cross-sectional transmission electron microscope (TEM) and energy dispersive X-ray spectrometry (EDS) analysis, diffusion of Gd-element into Ag layer was observed for the joined sample of GdBCO tape, it is suggested to be a cause of higher joint resistance for GdBCO tape.
AB - We investigated joint properties of REBCO (REBa2Cu 3O7-X, RE = rare earth element) coated conductors using a diffusion joint process. Two pieces of the coated conductor tapes with stabilizing silver layer on REBCO were overlapped in a face to face manner, which were pressurized and heat-treated at about 623-673 K in oxygen atmosphere. The joint resistance for YBCO tape was about 6.5 nΩ cm 2 at 77 K, on the other hand, that for GdBCO tape was about 37 nΩ cm2 which was higher than YBCO. From the results of both cross-sectional transmission electron microscope (TEM) and energy dispersive X-ray spectrometry (EDS) analysis, diffusion of Gd-element into Ag layer was observed for the joined sample of GdBCO tape, it is suggested to be a cause of higher joint resistance for GdBCO tape.
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U2 - 10.1016/j.physc.2011.05.106
DO - 10.1016/j.physc.2011.05.106
M3 - Article
AN - SCOPUS:80054991081
VL - 471
SP - 987
EP - 989
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 21-22
ER -