Synthetic High-Field, High-Current Superconductor

Abstract

The preparation and superconducting properties of Vycor glass cylinders containing filaments of superconducting Hg are described. The Hg, in the normal state, is forced at 3300 atm into the glass, which has a porosity of 35%. The magnetizations and critical current densities of several samples are measured as functions of magnetic fields and preparation parameters. These synthetic systems are found to have superconducting properties similar to those of hard superconductors. (T.F.H.)