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 …

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 …

In this work, ex situ MgB2 bulks were added with (1.5 Mg+ 2B) and sintered in an attempt to
enhance its intergrain connectivity. The addition was varied within the range of 0–50 wt …

Systematic research on the improvement in J c of MgB 2 bulks by the optimization of
sintering conditions was performed by applying a highly reproducible fabrication method …

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 doped with Ti or/and C were prepared by an in situ solid state reaction method
to determine the combined effect of C and Ti doping and to probe the detailed mechanism …

Two sets of MgB 2 samples doped with up to 5 at.% of Al were prepared in different
laboratories using different procedures. Decreases in the'a'and'c'lattice parameters were …

The ex situ technique is promising for its ease of preparation, low material shrinkage during
annealing and the fact that it is already superconducting without annealing. However the …

A small amount of silver addition was found to dramatically decrease reaction temperature of
magnesium and boron forming the MgB 2 bulk without degradations in both critical …

TiB2 doped MgB2 wires, with the component of Mg: B: TiB2= 1: 2: x (x= 0%, 5%, 8% and
10%), were fabricated through the in situ powder-in-tube method. Samples were sintered at …