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⊥c c2 /H ||c c2 dependence of the critical current density, Jc(B), were analyzed within the percolation model. The calculated critical current densities based on perco...

Abstract In this work, ex situ MgB 2 was mixed with 0.5 mol of Mg and sintered. The sintering conditions were varied over a temperature range 600–1000 °C for 1, 3, 7 h, respectively. addition during the increased partial pressure thus suppressed decomposition . Onset critical temperature, T c, retained at ∼ 38 K even after Mg. By increasing magnetic current density, J c self-field, 20 samples c...

With the advent of CORC cables as one themost suitable conductor technologies for development ultra high magnetic field applications, understanding their physical properties at a local level and how these influence macroscopically averaged quantities such AC losses, is utmost importance ulterior optimization further engineering depends on it. In this sense, within electromagnetic scenario, in p...