Abstract
In order to evaluate the mechanical and electrical properties of high-Tc oxide bulk superconductor at low temperature to room temperature, the bench-sized cryogenic load-test equipment system has developed. Yttrium (Y)-base oxide superconductor (123 specimen) and 10-30mass% of Ag added Y-base composite superconductors prepared by powder metallurgy process were used as a test specimen. Based on the results of cryogenic load-test, 10-30mass% of Ag addition enhanced the mechanical properties (such as stress at failure) against 123 specimen. Furthermore, the failure strength of these specimens were estimated by means of superconducting transition temperature width; ΔTc (Tc^<off>- tc^<on>).
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