Effect of magnetic field processing on the microstructure of micronsize Zn doped MgB2

Abstract The pulsed magnetic field was employed in the study on Zn doped MgB 2 bulks. A phenomenon that the slurry of Mg, Zn, B and their compounds were excited by the Lorentz force was observed in the pulsed magnetic field process. The critical current density ( J c ) of Zn doped MgB 2 bulks shows great anisotropic dependence on the included angle between the process field and the measurement field.