Method of manufacturing superconductive conductor

A method of manufacturing a superconductive conductor formed by a ceramic superconductive material having a composition generally expressed by a formula AaBbCc, where A represents at least an element selected from the group consisting of Ia, IIa and IIIb of the periodic table, B represents at least copper, C represents at least oxygen and a, b and c represent numbers showing composition ratios of A, B and C respectively, said method comprising:

• a step of melting a material generally expressed by a formula AaBb in a frame, where A, B, a and b represent those described above and wherein said AaBb when coupled with said Cc is capable of forming a superconductor;
• a step of continuously drawing out a melt of AaBb through a hole provided in said frame;
• a step of solidifying by forcible cooling or standing under ambient conditions said AaBb melt drawn out from said hole;
• and
• a step of heating to at least 700.degree. C. a solidified body of said AaBb in an atmosphere containing said C
• wherein said AaBb is coupled with said C to form a superconductive conductor.