Process for making superconductors with high critical current densities.

摘要

A process (and the resulting products) are disclosed which enable oxide superconductors such as REBa2CU3O6+x to be melt processed on various substrates, including a silver substrate or within a silver sheath. The process comprises melting a precursor material in an oxygen pressure that is chosen to ensure that the melting point of the precursor is less than that of the substrate and then solidifying the melted precursor material. The solidified material is then fully oxygenated by contacting it with an atmosphere containing oxygen. The process is particularly suitable for making long lengths of superconducting wire.