Effect of MgB₂ additives on structure, electrical and thermal properties of Eu₁Ba₂Cu₃O₇

The effect of MgB₂ addition on the Eu₁Ba₂Cu₃O₇ (EBCO) ceramics was systematically studied. Series of Eu₁Ba₂Cu₃O₇ + x(MgB₂) samples (x = 0 wt.%, 0.05 wt.%, 0.1 wt.%, 1 wt.%, 3 wt.%) were prepared using traditional solid state method. X-ray powder diffraction measurements were used for phase identification. The lattice parameters and orthorombicity decreased with MgB₂ addition. A standard four point measurement method was used to determine transition temperatures T_c of superconducting samples. T_c values of the samples were decreasing with MgB₂ concentration. TGA results indicate thermal stability of doped samples.