This review paper summarizes and analyses the current literature on the synthesis of dense
MgB 2 bulk with high density and by both the modified solid reaction method and the Mg …

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 …

In this work, ex situ MgB2 was mixed with 0.5 mol of Mg and sintered. The sintering
conditions were varied over a temperature range of 600–1000° C for 1, 3, and 7 h …

The influence of Cu addition on the microstructure and superconducting performance of ex-
situ sintered MgB 2 is systemically studied. It is found that the critical current density (J c) of …

Nano-or micropowders of Eu 2 O 3 were added to MgB 2, resulting in a composition of (MgB
2) 0.975 (EuO 1.5) 0.025. Pristine and doped samples were prepared using spark plasma …

A high-purity MgB 4 phase has been synthesized and used as the precursor powder for the
realization of in situ wires. Various final heat treatments, from 550 to 1100 C for 20 min each …

Abstract High performance Cu doped MgB 2 bulks were prepared by an in-situ method with
carbon-coated amorphous boron as precursor. It was found that the usage of carbon-coated …

The synthesis of bulk MgB 2 superconductors from Mg and MgB 4 precursors instead of the
conventional in situ process increases the packing density, but further enhancement of the …

The effect of the size and shape of magnesium (Mg) powder on the formation of $ MgB_2 $
and the critical current density ($ J_ {c,} $) of $ MgB_2 $ bulk was studied. As a precursor for …

Series of ex-situ polycrystalline MgB 2 bulk samples, by adding different additives like more
of excess Mg (5 wt.%), nanoparticles of Ag (3 wt.%), and SiC (10 wt.%) to a previously …