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The Trapped Field Characteristics of YBCO Superconductor Composite in Terms of Applied Magnetic Field  

Lee, M.S. (Chungbuk National University)
Jang, G.E. (Chungbuk National University)
Choi, Y.S. (Korea Basic Science Institute)
Jun, B.H. (Korea Atomic Energy Research Institute)
Han, Y.H. (Korea Electric Power Research Institute)
Park, B.J. (Korea Electric Power Research Institute)
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Abstract
We have measured the trapped field of YBCO bulk with different configuration by applying the magnetic field of $Nb_3Sn$ superconducting magnet. Initially the circular type of YBCO bulk superconductor was prepared and then hole, parallel to the c-axis and located at the center of bulk was mechanically drilled. The YBCO bulk with hole was filled with resin. Typical size of hole in YBCO bulk was 10 mm in diameter. Trapped field characteristics were compared with different specimen conditions. Our preliminary result indicates the increment rate of trapped field, 0.232 kG, measured on the YBCO without hole was much higher than that, 0.011 kG, measured on YBCO with hole.
Keywords
YBCO; bulk; trapped field; artificial hole; impregnation;
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