Some small-scale high-temperature superconducting models for applications in electricity and transportation
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Mamalis, AG
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Kotsis, I
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Szalay, A
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Vajda, I
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Pantazopoulos, G
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Some small-scale model machines, namely a synchronous generator, a levitated bearing and a levitated vehicle are presented as applications of high-temperature superconducting materials. The models have been constructed on the basis of calculation of the magnetic field and forces between permanent magnets and HTSC materials prepared by different fabrication techniques, that is cold-pressing, explosive-compaction and melt-texturing. The fabrication of the superconductor plays a fundamental role in designing these machines, since large levitation forces can be achieved using superconductors with high pinning forces. The fabrication processes as well as the main material aspects are also reported and discussed. (C) 1997 Academic Press Limited.
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