We present the superconducting properties and phase compositions of Mg 1− x Zr x B 2 bulk
samples fabricated by a solid-state reaction at ambient pressure. It is found that a small …

MgB 2 bulks were synthesized by the solid-state reaction of Mg and B at 600 C and their
superconducting properties were compared with samples heated at 850 C. The samples …

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 …

The doping effect of Ti and Zr on the superconducting properties and the microstructure of
sintered MgB2 bulk materials has been studied. The transition metal is found to work as a …

We prepared a series of Mg 1− x Zr x B 2 bulk samples with different x values by the solid-
state reaction at ambient pressure and investigated the effects of the Zr doping on phase …

We prepared bulk MgB2 from high‐purity commercial powders of Mg metal (99.9% purity)
and amorphous B (99% purity) powders using a single‐step solid state reaction at 775° C for …

We present a detailed analysis of the effects of excess Mg on the lattice parameters, the
critical temperature (T c), the critical current (J c), the irreversibility field (H irr), and the upper …

Moderate critical current density (Jc) has been a long‐lasting problem in bulk MgB2
superconductors. We show a certain increment in Jc of bulk MgB2 via the use of amorphous …

We studied the Ti doping effect on the superconducting properties and microstructure of
sintered MgB 2 bulk polycrystals. Using Ti as a sintering assistant, we have fabricated MgB 2 …

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 …