ReBCO HIGH TEMPERATURE SUPERCONDUCTING WIRE BONDING DEVICE AND BONDING METHOD USING SAME

摘要

Disclosed herein are an apparatus for joining second-generation ReBCO high temperature superconducting wires and a joining method using the same which are capable of fabricating sufficiently long superconducting wires of a persistent current mode having almost zero resistance at the joint of the wires compared to the conventional non-superconducting joint by press-joining the ReBCO high temperature superconductor layers placed to make a direct surface contact with each other through melting diffusion or solid-state diffusion of a tiny portion of a material of the superconductor layers without a medium such as solder or a filler.

主权项

1. An apparatus for joining ReBCO high temperature superconducting wires, comprising:
a chamber; an oxygen supply unit mounted on one side of the chamber to supply oxygen into the chamber; a vacuum pump mounted on one side of the chamber to adjust a degree of vacuum in the chamber; a pressure measurement device mounted on one side of the chamber to measure a pressure in the chamber; a temperature measurement device mounted on one side of the chamber measure a temperature in the chamber and a temperature of joints of the superconducting wires; a timer mounted on one side of the chamber to measure a entire process time of a joining process and a superconductivity recovery process; a support holder mounted inside the chamber, the support holder allowing a pair of superconducting wire to be rested thereon; a holder jig mounted inside the chamber and positioned between the support holder and the chamber, the holder jig being screw-coupled to the support holder through a plurality of coupling screws; a heater mounted between the support holder and the holder jig to heat the pair of superconducting wires; a press block mounted inside the chamber to apply pressure to join the pair of superconducting wires; and a pressurizer extending from one side of the chamber to an upper portion of the press block to supply pressure to the press block.