Superconductor mixture

摘要

PCT No. PCT/EP96/03312 Sec. 371 Date Jun. 3, 1998 Sec. 102(e) Date Jun. 3, 1998 PCT Filed Jul. 26, 1996 PCT Pub. No. WO97/06567 PCT Pub. Date Feb. 20, 1997A mixture suitable for the production of melt-processed high-temperature superconductors capable of producing a high levitation force. The mixture contains YBa2Cu3O7-x powder with a very low content of copper oxide, i.e. copper not bound in with the YBa2Cu3O7-x, and a very low carbon content. Also included are stabilizing (so-called "flux-pinning") additives. Also disclosed is a method or producing the mixture, as well as YBa2Cu3O7-x powder with suitable low free copper oxide and carbon contents, used to prepare the mixture.