AC losses to be reduced by twisting filaments in a silver-sheathed Bi-2223 multifilamentary tape
作者： Masahiro Sugimoto , Akira Takagi , Masanao Mimura , Shoichi Honjo , Tomoo Mimura
DOI: 10.1016/S0921-4534(99)00531-6
关键词:
摘要: An investigation is carried out to manifest types of AC losses in silver-sheathed Bi-2223 multifilamentary tapes that can be reduced by twisting filaments. The losses, external magnetic fields parallel the tape surface, consist mainly due macroscopic screening currents multiple filaments and microscopic grains. former loss depends greatly on filament twist pitch, while latter does not. Below critical changing rate a field at which outer begin saturate, inter-filament coupling are added hysteresis for equivalent size. Consequently, an analytical model successfully explain experimental results considerably
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sci-hub.se 参考文章(20)
M. Majoroš, P. Kottman, M. Polák, W. Schauer, V. Windte, J. Reiner, V. Plecháček, Flux creep in superconducting YBaCuO and BiPbSrCaCuO Cryogenics. ,vol. 32, pp. 1061- 1065 ,(1992) , 10.1016/0011-2275(92)90028-9
Martin Wilson, Case studies in superconducting magnets Cryogenics. ,vol. 36, pp. 885- ,(1996) , 10.1016/0011-2275(96)82544-6
J. Paasi, M. Polák, M. Lahtinen, V. Plecháček, L. Söderlund, Magnetic flux distribution and magnetic relaxation in polycrystalline Bi,PbSrCaCuO superconductors Cryogenics. ,vol. 32, pp. 1076- 1083 ,(1992) , 10.1016/0011-2275(92)90031-5
K. Yamafuji, T. Wakuda, T. Kiss, Generalized critical state model in high-Tc superconductors Cryogenics. ,vol. 37, pp. 421- 430 ,(1997) , 10.1016/S0011-2275(97)00039-8
K-H Müller, C Andrikidis, Hua-Kun Liu, SX Dou, None, Intergranular and intragranular critical currents in silver-sheathed Pb-Bi-Sr-Ca-Cu-O tapes. Physical Review B. ,vol. 50, pp. 10218- 10224 ,(1994) , 10.1103/PHYSREVB.50.10218
Masahiro Sugimoto, Akio Kimura, Masanao Mimura, Yasuzo Tanaka, Hideo Ishii, Shiichi Honjo, Yoshihiro Iwata, Electromagnetic interfilament coupling of silver-sheathed Bi-2223 multifilamentary tapes in transverse AC magnetic fields Physica C-superconductivity and Its Applications. ,vol. 279, pp. 225- 232 ,(1997) , 10.1016/S0921-4534(97)00096-8
M.P. Oomen, J. Rieger, M. Leghissa, H.H.J. ten Kate, Magnetic ac loss in multi-filamentary Bi-2223 / Ag tapes Physica C-superconductivity and Its Applications. ,vol. 290, pp. 281- 290 ,(1997) , 10.1016/S0921-4534(97)01672-9
M.D. Sumption, A model for bridging and coupling in superconductors Physica C-superconductivity and Its Applications. ,vol. 261, pp. 245- 258 ,(1996) , 10.1016/0921-4534(96)00173-6
R. B. Goldfarb, K. Itoh, Reduction of interfilament contact loss in Nb3Sn superconductor wires Journal of Applied Physics. ,vol. 75, pp. 2115- 2118 ,(1994) , 10.1063/1.356317
B. Turck, F. Lefevre, M. Polak, L. Krempasky, Coupling losses in a rectangular multifilamentary superconducting composite Cryogenics. ,vol. 22, pp. 441- 450 ,(1982) , 10.1016/0011-2275(82)90127-8