| 摘要 |
PURPOSE:To make it possible to obtain an Nb3Sn compound superconductive wire with remarkably small AC loss, by making a population, in which filament- formed Nb3Sn compounds are buried, of a CuSn type alloy containing Si less than 30 wt/%. CONSTITUTION:In an Nb3Sn compound superconductive wire which consists of a population and a plural filament-formed Nb3Sn compounds buried in the population, a CuSn type alloy including at least Si less than 30 wt.% is used for the population. As a result, a superconductive wire of a good critical current property and a small AC loss can be obtained. Therefore, a superconductive coil with a large magnetic field fluctuation, for example, can be operated, and such a superconductive wire is utilized to realize the improvement of efficiency and the compact size of various power appliances such as an AC generator, a transformer, and a superconductive magnetic energy storing device.
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