METHOD FOR FORMING A SUPERCONDUCTING CONNECTION STRUCTURE AND SUPERCONDUCTING CONNECTION STRUCTURE

摘要

A method for forming a superconducting connection structure between at least two superconducting wires 3 is provided where each wire comprises at least one superconducting filament. An end piece 3a of each of the at least two superconducting wires is positioned inside a cavity of a pressing tool 1. A contacting material 15 comprising MgB2 and/or a precursor material for MgB2 is further positioned inside the cavity. Pressure 17 is applied to the contacting material through the pressing tool and the contacting material is heated inside the cavity. Pressure and heat are applied simultaneously at least during part of the process. The invention also relates to a superconducting connection structure with at least two superconducting wires, each wire comprising at least one superconducting filament, and a superconducting connection between the end pieces of the two wires. The connection is formed of heated and compressed contacting material comprising MgB2.