Method for forming triniobium tin superconductor with bismuth

摘要

A method for making triniobium tin superconductor with improved critical current density is disclosed where an annealed niobium- base substrate is passed through a tin alloy bath containing tin, copper, and bismuth, to coat the substrate with tin and then annealing the coated substrate to form triniobium tin superconductor. A tin alloy bath containing up to twenty weight percent copper and up to one weight percent bismuth is disclosed.