Nanoparticulate composites of melt textured YBa2Cu3O7−x superconductors

It has been shown that Nd1+xBa2−xCu3O7−x could exhibit a pronounced Jc(H) peak effect, which results in an enhancement of the critical current density under the medium range magnetic field. Additions of small quantities of Nd2O3 into Pt-doped YBa2Cu3O7−x (Y123) resulted in the formation of nanosized (30–60 nm) secondary phases which are expected to have a significant effect on superconducting properties of melt textured Y123 single crystals. By considering of solidification kinetics, effect of neodymium oxide and platinum addition on processing parameters of melt textured Y123 superconductors are discussed.