| 摘要 |
TITLE OF THE INVENTION METHOD OF PRODUCING SUPERCONDUCTING WIRE The present invention relates to a method of producing a superconducting wire capable of obtaining a ceramics superconducting wire having a high critical temperature. Although a ceramics superconductor having a critical temperature of 30K or more has been recently developed, problems have occurred in that the workability is remarkably lowered due to the poor ductility and flexibility, so that it is very difficult to turn into a wire, and the constituent elements other than elements of the group IIa in the periodic table, elements of the group IIIa in the periodic table, cooper and oxygen, which enter superconducting materials as impurities when sintered at high temperatures after giving a desired shape to them to obtain such ceramics superconductor, have a bad influence upon superconducting characteristics such as critical temperature. The present invention solves the above described problems and provides a method of producing a superconducting wire with a superconducting layer coated with Cu-Be alloys by coating a ceramics superconducting material with Cu-Be alloys and then turning into a wire material having an appointed shape by the area-reduction processing followed by sintering said wire material at a temperature range at which the superconducting layer can be formed.
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