Role of Superconducting Materials in the Endeavor to Stop Climate Change and Reach Sustainable Development.

Progress in the mass production of newly developed bulk (GdYEr)BaCuO "(Gd,Y,Er)123" and MgB systems is presented. Two batches of (Gd,Y,Er)123 pellets of 20 mm diameter and 7 mm thick were prepared in air by an infiltration growth "IG" process. Trapped field distribution profiles of fully grown bulk samples clearly showed that all samples were single-grain and the trapped field values were more than 0.