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首页> 外文期刊>Philosophical magazine, B. Physics of condensed matter, electronic, optical, and magnetic properties >Optimization of (Bi, Pb)(2)Sr2Ca2Cu3O10/Ag conductors for practical applications
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Optimization of (Bi, Pb)(2)Sr2Ca2Cu3O10/Ag conductors for practical applications

机译：为实际应用优化（Bi，Pb）（2）Sr2Ca2Cu3O10 / Ag导体

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摘要

In this paper we report some of the most recent developments of silver-sheathed (Bi,Pb)(2)Sr2Ca2Cu3O10 (Bi-2223) tapes that are currently under analysis in view of the potential future applications of these conductors. Various attempts for improving the tape behaviour in the presence of high magnetic fields and/or ac's are actively carried out. A substantial improvement in the magnetic field dependence of the critical current density was observed in Bi-2223/Ag tapes that were cooled at very slow rates after the final heat treatment process. This result was attributed to the reduction in the Pb content inside the Bi-2223 phase. A clear reduction in the ac losses was observed by ac susceptibility measurements performed on twisted Bi-2223 tapes including an insulating barrier capable of enhancing the transverse resistivity of the silver matrix. [References: 11]
机译：在本文中，我们报告了一些银护套（Bi，Pb）（2）Sr2Ca2Cu3O10（Bi-2223）胶带的最新进展，鉴于这些导体的潜在未来应用，目前正在对其进行分析。在存在高磁场和/或交流电的情况下，积极地进行了各种改善磁带性能的尝试。在最终热处理过程之后以非常慢的速度冷却的Bi-2223 / Ag胶带中，观察到临界电流密度的磁场依赖性有了显着改善。该结果归因于Bi-2223相内部的Pb含量降低。通过在扭曲的Bi-2223胶带上进行的交流磁化率测量，可以观察到交流损耗的明显降低，该Bi-2223胶带包含能够提高银基质横向电阻率的绝缘势垒。 [参考：11]

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