Magnetic field dependence of critical current density in Bi - Pb - Sr - Ca - Cu - O silver sheathed wire
1990; Elsevier BV; Volume: 30; Issue: 11 Linguagem: Inglês
10.1016/0011-2275(90)90152-3
ISSN1879-2235
AutoresTakeshi Hikata, Munetsugu Ueyama, H. Mukai, Ken‐ichi Sato,
Tópico(s)Magnetic Properties and Applications
ResumoBiPbSrCaCuO silver sheathed high Tc superconducting wires were fabricated through the solid reaction process. It is proposed in this paper that the magnetic field dependence of Jc of the wire is dominated by the Lorentz force perpendicular to the c-axis, caused by a transport current with c-axis component crossing grain boundaries, when a magnetic field is applied parallel to the plane of the wire. It was found that BiPbSrCaCuO silver sheathed wire had sufficient potential for applications at 4.2 K. The history effect of Jc for high Jc specimens was not observed at 77.3 K and appeared again at 4.2 K
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