Trapped-flux magnets made of stacks of superconducting tapes are an interesting and important alternative to the application of rare-earth permanent magnets and trapping flux in bulk superconductors. Many applications, such as electric motors, can require the complex shapes of magnetic elements to combat issues such as demagnetization during the operation. Therefore, a reliable production technique of high temperature superconductor (HTS) stacks with different geometries is required to meet the needs of industry. In this article, a method of shaping the epoxy-glued stacks of superconducting tapes is proposed and investigated. The application of hot press allows to easily change the shape of the stack. The influence of shaping the stack on the density of trapped magnetic flux as well as critical current are presented. Experimental and numerical analyses are performed and their results are matched to find the change in the superconducting properties of the tapes. They show that with the proper process parameters the stacks can be shaped with only minor decrease of performance. However, strong degradation is observed if the applied force is too high. The observed problems are discussed and the possible solutions are proposed.

中文翻译：

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应用热压弯曲成型一堆 HTS 带，用作俘获磁通磁铁

由超导带堆叠制成的俘获磁通磁铁是稀土永磁体应用和大块超导体俘获磁通的一种有趣且重要的替代方案。许多应用（例如电动机）可能需要复杂形状的磁性元件来解决运行过程中的退磁等问题。因此，需要一种可靠的具有不同几何形状的高温超导体（HTS）堆栈的生产技术来满足工业需求。在本文中，提出并研究了一种成型超导带环氧树脂胶叠层的方法。热压机的应用可以轻松改变堆栈的形状。介绍了成形堆叠对俘获磁通密度和临界电流的影响。进行了实验和数值分析，并将它们的结果进行了匹配，以找出带材超导特性的变化。他们表明，通过适当的工艺参数，可以在性能略有下降的情况下对堆叠进行成型。然而，如果施加的力太高，则会观察到强烈的退化。讨论了观察到的问题并提出了可能的解决方案。