The flux pinning mechanisms of nano-Si-doped MgB2 are reported in this work. The field

dependence of the critical current density, Jc(B), was analyzed within the collective pinning

model. We found that the mechanisms for both δl...

The field dependence of the critical current density, jc (B), of MgB2 doped with 10 weight % liquid precursor, silicone oil, was measured. The enhanced jc (B) compared to the pure MgB2 was obtained. An observed temperature dependence...

The dysprosium oxide nanoparticles’ addition effects on structural, DC electrical resistivity, critical current density, and AC magnetic susceptibility properties of polycrystalline Bi1.6Pb0.4Sr2Ca2Cu samples are investigated. X-ray diffraction (XRD...

The temperature and magnetic field dependences of the critical current density in silicone oil doped MgB2 polycrystalline samples have been investigated by magnetic measurements. The upper critical magnetic field anisotropy, γ=H_c2^(⟘c)/H_c2^(...
c), dependence of the critical current density, Jc(B), were analyzed within the percolation model . The calculated critical current densities based on percolation theory are in agreement with the experimental data. It was found that the anisotropy...

The impact of hydrostatic pressure up to 1.2 GPa on the critical current density (Jc) and the nature of the pinning mechanism in MgB2 have been investigated within the framework of the collective theory. We found that the hydrostatic pressure can...

The transport and magnetic properties of 5 wt % nano-Si- and 10 wt % SiCl4-doped MgB2 have been studied by measuring the resistivity, ρ, critical current density, Jc, irreversibility field, Hirr, and upper critical field, Hc2. Similar scattering...

MgB2 superconductor samples, co-doped with 0.02 wt of Al2O3 and 0.02 wt SiC, have been examined by M-H loop measurements and calculation of the critical current density based on the Bean model. Normalized volume pinning force, f= F/Fmax, as a...

Magnetic and transport properties of 10 wt% SiC doped MgB2 and 5 wt% nano-C doped MgB2 were studied by resistance and critical current density measurements. The results showed improvement of the critical current density for the MgB2 superconductor...