TY - JOUR
T1 - Study of factors in joint resistance for GdBCO coated conductors
AU - Watanabe, T.
AU - Kamata, T.
AU - Maebatake, T.
AU - Teranishi, R.
AU - Kiss, T.
AU - Yamada, K.
AU - Kaneko, K.
AU - Yoshizumi, M.
AU - Izumi, T.
N1 - Funding Information:
This work was supported by the New Energy and Industrial Technology Development Organization (NEDO) as the Materials and Power Application of Coated Conductors Project (M-PACC) through International Superconductivity Technology Centre (ISTEC). The authors would like to thank K. Takeda of Kyushu University for the cooperation for this study.
PY - 2013
Y1 - 2013
N2 - Joint techniques are important to manufacture long superconducting tapes. It has been reported that GdBa2Cu3Oy (GdBCO) coated conductors have higher critical current and critical temperature than YBCO. However, it was reported that the joint resistance of GdBCO was found higher than that of YBCO. In this paper, the elemental distribution maps were investigated to examine the cause of joint resistance. Electron microscopy analysis of GdBCO showed the reduction of oxygen in GdBCO layer. This oxygen reduction may cause degradation of superconducting properties and increase of Ag-GdBCO interfacial resistance, which may have led higher joint resistance in Ag/GdBCO.
AB - Joint techniques are important to manufacture long superconducting tapes. It has been reported that GdBa2Cu3Oy (GdBCO) coated conductors have higher critical current and critical temperature than YBCO. However, it was reported that the joint resistance of GdBCO was found higher than that of YBCO. In this paper, the elemental distribution maps were investigated to examine the cause of joint resistance. Electron microscopy analysis of GdBCO showed the reduction of oxygen in GdBCO layer. This oxygen reduction may cause degradation of superconducting properties and increase of Ag-GdBCO interfacial resistance, which may have led higher joint resistance in Ag/GdBCO.
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U2 - 10.1016/j.phpro.2013.04.078
DO - 10.1016/j.phpro.2013.04.078
M3 - Conference article
AN - SCOPUS:84902302985
SN - 1875-3884
VL - 45
SP - 165
EP - 168
JO - Physics Procedia
JF - Physics Procedia
T2 - 25th International Symposium on Superconductivity, ISS 2012
Y2 - 3 December 2012 through 5 December 2012
ER -