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首页> 外文期刊>Physica, C. Superconductivity and its applications >Anisotropic characteristics of the energy dissipation in Bi(2223) ceramics and tapes in weak magnetic fields
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Anisotropic characteristics of the energy dissipation in Bi(2223) ceramics and tapes in weak magnetic fields

机译：Bi（2223）陶瓷和胶带在弱磁场中能量耗散的各向异性特征

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摘要

For practical application of HTSC tapes as current leads. their behavior in realistic conditions, in the presence of magnetic field, becomes crucially important. We have investigated in detail the resistivity transition and the excess resistivity induced by low magnetic fields (1-750 Oe) in highly aligned composite structures of Bi(2223) based tapes and also. for comparison, in bulk ceramics of the same composition. We demonstrate the strong, dependence of the electrical and magnetic properties on the microstructure of the composite ceramics', We observed also a dependence of the energy dissipation on the direction of the transport current with respect to the grain orientation. Percolation theory and the effective medium approximation are applied to analyze the anisotropy in the realistive transition of these systems, (C) 2002 Elsevier Science B.V. All rights reserved. [References: 10]
机译：用于HTSC胶带的实际应用作为电流引线。在有磁场的情况下，它们在现实条件下的行为至关重要。我们已经详细研究了Bi（2223）基胶带的高度对齐复合结构中低磁场（1-750 Oe）引起的电阻率转变和过剩电阻率。为了比较，使用相同成分的散装陶瓷。我们证明了电性能和磁性能对复合陶瓷微结构的强烈依赖性。我们还观察到了能量耗散对传输电流方向（相对于晶粒取向）的依赖性。渗流理论和有效介质近似被用于分析这些系统在有形过渡中的各向异性，（C）2002 Elsevier Science B.V.保留所有权利。 [参考：10]

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