Critical temperature measurement method of composite superconductors

Abstract

The critical temperature ( T c) is one of the most important properties in applications of superconductors. There are a lot of test methods to measure T c of superconductors and therefore the standardization of the measurement method of T c is needed. For those demands the draft of T c measurement method was prepared by various organizations and committees in Japan. The outline of the method was the resistance method using a 50% resistance criterion, which is applicable to both metallic and oxide composite superconductors in industrial uses. The draft was submitted to IEC/TC90 and certified as a new work item proposal.