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AssigneeInternational Superconductivity Technology Center
InventorsJunya Maeda, Teruo Izumi, Yuichi Imagawa, Satoshi Matsuoka, Yuh Shiohara, Shoji Tanaka, Hiroshi Okamoto
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A rod 1 made of superconducting oxide is soaked in a molten normal conductor 2 to join the rod 1 and the normal conductor 2, whereby a superconducting oxide current lead is prepared. As a result, a contact resistance at the interface between the superconducting oxide and the normal conductor can be reduced. Consequently, Joule's heat at a current lead having a small cross sectional area can be suppressed low, which in turn realizes the reduction of the load on a freezer and the amount of evaporated cooling solvent, with respect to a superconducting coil.
A method for producing a joint comprising a superconducting oxide and a normal conductor, which comprises soaking an end of a rod formed from the superconducting oxide in a molten normal conductor, wherein the molten normal conductor comprises a substance containing the same metal components as in the superconducting oxide.
A method for producing a joint comprising a superconducting oxide and a normal conductor, which comprises soaking an end of a rod formed from the superconducting oxide in a molten normal conductor which is in a supercooled state and wherein the molten normal conductor has a temperature of not more than a peritectic temperature of the superconducting oxide forming the rod and not more than a melting temperature of the normal conductor.
A method for producing a joint comprising a superconducting oxide and a normal conductor, which comprises soaking an end of a rod formed from the superconducting oxide in a molten normal conductor, wherein the rod has a groove formed on an end thereof.
A method for producing a joint comprising a superconducting oxide and a normal conductor, which comprises soaking an end of a rod formed from the superconducting oxide in a molten normal conductor, wherein a part or the entirety of the rod is soaked in the molten normal conductor to which a substance having the same composition as the metal components of the superconducting oxide has been previously added.
Dependencies are inferred from the claim text.