the effect of partial nb doping on magnetic and electrical behavior of y-123 superconductors with nano cuo

We have investigated the effect of niobium and nano cuo (40 nm) dopingy1-xnbxba2cu3o7-∂ compounds with 0.00 ≤ x ≤ 0.05 wt. %, prepared by the conventional solid-state method by means of xrd, sem, r(t) and magnetic loops (m-h) measurements. the critical current densities, jc as a function of temperature have been calculated using the critical state model from the hysteresis loops up to 1 kg at the temperature range of 10-60 k. magnetic flux pinning, fp of samples was calculated by using lorentz force. the temperature dependence of the electrical resistivity measurement curves indicated that the sample with x=0.01 wt.% has a high transition temperature, tc. xrd analysis shows a shorter c axis lattice parameter and higher orthoromthcity than the pure y-123 and other nb-doped samples. it was also found from jc and fp measurement, that the 0.01 wt.% nb substation for the y on ybco superconductor improves the jc and fp.

The effect of partial Nb doping on magnetic and electrical behavior of Y-123 superconductors with Nano CuO

We have investigated the effect of Niobium and Nano CuO (40 nm) dopingY1-xNbxBa2Cu3O7-∂ compounds with 0.00 ≤ x ≤ 0.05 wt. %, prepared by the conventional solid-state method by means of XRD, SEM, R(T) and magnetic loops (M-H) measurements. The critical current densities, Jc as a function of temperature have been calculated using the critical state model from the hysteresis loops up to 1 kG at the temperature range of 10-60 K. Magnetic flux pinning, Fp of samples was calculated by using Lorentz force. The temperature dependence of the electrical resistivity measurement curves indicated that the sample with x=0.01 wt.% has a high transition temperature, Tc. XRD analysis shows a shorter c axis lattice parameter and higher orthoromthcity than the pure Y-123 and other Nb-doped samples. It was also found from Jc and Fp measurement, that the 0.01 wt.% Nb substation for the Y on YBCO superconductor improves the Jc and Fp.