We selected amorphous, nano-size carbon black (10–30nm) as a dopant for MgB2
superconductor to improve critical current density (Jc) at high magnetic field. We fabricated …

We fabricated nano-carbon (NC) doped MgB2 bulks using an in situ process in order to
improve the critical current density (Jc) under a high magnetic field and evaluated the …

In this study, nanosize Silicon and Carbon (Si+ C) were reacted with MgB 2 in order to
enhance the critical current density. The polycrystalline bulks were synthesized by the direct …

The relationships between microstructures, crystallinity and critical current properties for B 4
C doped MgB 2 bulks, MgB 2− 5x (B 4 C) x with x= 0, 0.04, 0.1, 0.2 and 0.4, were …

The effect of doping MgB2 with carbon nanotubes on transition temperature, lattice
parameters, critical current density and flux pinning was studied for MgB2xCx with x 0, 0.05 …

TiC doped MgB2 bulks were fabricated by two-step reaction method. The sample with a
nominal compositions of Mg (B0. 95 (TiC) 0.05) 4 was first sintered at 1000° C for 0.5 h. An …

In previous studies, we found that bulk MgB 2 contained numerous voids in various shapes
and sizes. With the aim of improving the critical current density as well as the mechanical …

In this study, we report on a further improvement of the critical current density of the sintered
bulk MgB 2 material utilizing the optimized sintering temperature combined with a varying …

The present investigation focuses on methods to further improve the J c values of disk-
shaped bulk MgB 2 superconductors by optimizing the sintering conditions. We prepared …

Ti-doped MgB 2 superconductors with different doping levels were prepared by solid-state
reaction at ambient pressure. The density, diamagnetic signal, and J c of the samples …