PREPARATION OF MOLDED ITEM FROM PRECURSOR OF OXIDE-TYPE HIGH TEMPERATURE SUPERCONDUCTIVE BODY

摘要

In the process for producing mouldings from precursors of oxidic high temperature superconductors of the BSCCO type, a copper mould of the desired shape enclosing a solidified bismuth/strontium/calcium cuprate melt is treated with a solution composed of a soluble compound containing sulphate anions, an aqueous mineral acid and an oxidising agent until the copper mould is dissolved.