TY - JOUR
T1 - Investigation of three-dimensional current distribution at silver diffusion joint of RE-123 coated conductors based on magnetic microscopy combined with finite element method
AU - Higashikawa, Kohei
AU - Honda, Yoshihiro
AU - Inoue, Masayoshi
AU - Kiss, Takanobu
AU - Chikumoto, Noriko
AU - Sakai, Naomichi
AU - Izumi, Teruo
AU - Okamoto, Hiroshi
N1 - Funding Information:
Manuscript received August 03, 2010; accepted November 16, 2010. Date of publication December 30, 2010; date of current version May 27, 2011. This work was supported by the “New Energy and Industrial Technology Development Organization (NEDO) as the Project for Development of Materials & Power Application of Coated Conductors, M-PACC”, “JSPS: KAKENHI (20360143)” and “JSPS: KAKENHI (20.1945)”.
PY - 2011/6
Y1 - 2011/6
N2 - Combining scanning Hall-probe microscopy (SHPM) with finite element method (FEM), we have investigated three-dimensional current distribution at a silver diffusion joint of RE-123 coated conductor (CC). This research aims at the understanding of electromagnetic behaviors in a jointed CC and at the establishment of an analysis model for it. Two-dimensional distribution of sheet current density in a jointed sample was visualized by a SHPM measurement with a spatial resolution of a few hundred micrometers. Then, it was found that such a distribution included information about current transfer between the jointed pieces. Furthermore, the experimental results were successfully reconstructed by a three-dimensional FEM analysis. We believe that these will be very important findings for the establishment of jointing processes on CCs and for the designs of practical applications which need such processes.
AB - Combining scanning Hall-probe microscopy (SHPM) with finite element method (FEM), we have investigated three-dimensional current distribution at a silver diffusion joint of RE-123 coated conductor (CC). This research aims at the understanding of electromagnetic behaviors in a jointed CC and at the establishment of an analysis model for it. Two-dimensional distribution of sheet current density in a jointed sample was visualized by a SHPM measurement with a spatial resolution of a few hundred micrometers. Then, it was found that such a distribution included information about current transfer between the jointed pieces. Furthermore, the experimental results were successfully reconstructed by a three-dimensional FEM analysis. We believe that these will be very important findings for the establishment of jointing processes on CCs and for the designs of practical applications which need such processes.
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U2 - 10.1109/TASC.2010.2095405
DO - 10.1109/TASC.2010.2095405
M3 - Article
AN - SCOPUS:79957954053
SN - 1051-8223
VL - 21
SP - 3403
EP - 3407
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
IS - 3 PART 3
M1 - 5677565
ER -