Low-resistivity, YBa2Cu3O7-to-silver electrical contacts by plasma spraying

Abstract
A simple cost‐effective method has been developed for the fabrication of low‐resistivity contacts for high‐temperature superconducting ceramics. Surface resistivities have been measured for the contacts in the 10−8 Ω cm2 range at 76 K. The fabrication method involves application of a silver pad to the ceramic by plasma spraying and then attachment of leads by soldering.