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...