PRODUCTION METHOD OF SUPERCONDUCTIVE CRYSTAL POWDER, SUPERCONDUCTIVE SHEET, SUPERCONDUCTIVE TAPE, AND SUPERCONDUCTIVE WIRE ROD

摘要

PROBLEM TO BE SOLVED: To provide a method capable of producing a superconductive crystal powder such as a Bi-2212 crystal powder in a short time and easily, and capable of easily aligning the superconductive crystal powder.SOLUTION: The production method of a superconductive crystal powder comprises: a step of heat-treating a Cu-containing material in a state of being held between holding bodies to a softening-fluidizing region of the Cu-containing material; a step of cooling down the Cu-containing material at a cooling rate of 0.1-15°C/hour to deposit a superconductive crystal from the Cu-containing material; and a step of peeling the holding bodies and collecting the superconductive crystal powder from the peeled face of the holding bodies.