초록 ▼

A method of manufacturing a superconducting wire is carried out by first preparing a material being composed of Y1Ba2Cu3O7. This material is melted in a platinum crucible. A melt thus obtained is drawn out from a hole provided on the bottom wall of the crucible to be linearly discharged. The linearl

A method of manufacturing a superconducting wire is carried out by first preparing a material being composed of Y1Ba2Cu3O7. This material is melted in a platinum crucible. A melt thus obtained is drawn out from a hole provided on the bottom wall of the crucible to be linearly discharged. The linearly discharged melt is cooled and solidified. A cooling/solidifying space for such a step is set at a temperature less by about 10°C. than the solidifying point of the material, and a slow-cooling zone is provided next to the cooling/solidifying space. This slow-cooling zone is provided to be at a relatively high temperature in a portion closer to the hole while having a temperature gradient along a direction for linearly discharging the melt. A superconducting wire being composed of Y1Ba2Cu3O7 is obtained. This superconducting wire superconducts at 85K.

대표청구항 ▼

A method of manufacturing a super conductive wire composed of a ceramic superconductive material of composition AaBbCucOd, wherein: A is at least one of Y, La, and Bi; B is at least one of Ca, Sr, and Ba; and a,b,c, and d represent the relative molar ratios of A, B, Cu and O comprising the steps of:

A method of manufacturing a super conductive wire composed of a ceramic superconductive material of composition AaBbCucOd, wherein: A is at least one of Y, La, and Bi; B is at least one of Ca, Sr, and Ba; and a,b,c, and d represent the relative molar ratios of A, B, Cu and O comprising the steps of: preparing a raw material precursor of said ceramic superconductive material; melting said raw material in a vessel having a hole in communication with its interior to obtain a melt; linearly discharging said melt from said hole by either extrusion or drawout; and cooling and solidifying said linearly discharged melt to obtain a solidified body.