Jack Greenwood

Durham University

I am a postgraduate student at Durham and am investigating the mechanisms that determine the strain dependence of the critical current density of technological high temperature superconductors (HTS), in 1D and 2D. By understanding the strain dependence of the critical current density in HTS, manufacturers can optimise the electromechanical properties of the superconductors and engineers can optimise the HTS magnet designs of future fusion devices.

This work includes designing and commissioning bespoke experimental apparatus that can be used in Durham’s world-class 15 Tesla split-pair horizontal magnet system and performing high field current transport measurements of up to 2000 A on HTS in the nanovolt range. The results of these experiments are being used to develop a model for the in-field strain dependence of the critical current density of HTS coated conductors.