PRODUCTION OF OXIDE SUPERCONDUCTOR

摘要

PURPOSE:To obtain an oxide superconductor having high critical current density by heating a mixture of source powders for RE-Ba-Cu-O oxide superconductor (RE is a rare earth element including Y) under specified conditions and cooling, then pulverizing and mixing the obtd. solidified material, molding, and again heating this molded body under specified conditions. CONSTITUTION:A mixture of source powders for RE-Ba-Cu-O oxide superconductor (RE is a rare earth element including Y) is heated in a high temp. region where the mixture partly changes into a liquid phase, and then cooled to obtain a solidified material. This solidified material is pulverized and mixed to uniformly disperse the structure. Then the mixture powder is compacted into a specified shape and then again heated in a high temp. region where the body partly changes into a liquid phase to grow the superconductor phase.