HIGH TEMPERATURE PROCESSING OF CUPRATE OXIDE SUPERCONDUCTORS

摘要

A high temperature treatment process whereby superconducting phases and materials can be obtained based on a treatment by high temperature of a non-superconducting phase of a cupric oxide compound. The high temperature processing provides an alternate synthetic route in the search for a new high Tc superconductors and a new high Tc copper oxide material is formed with non-rare earth elements Bi-Sr-Cu-O. Similarly a nominal composition YSrCuO4-y is high temperature processed to exhibit superconducting transitions at temperatures previously unattainable with low temperature heat treatment methods.