MgB 2 bulks with excess Mg addition were rapidly synthesized by sintering at low
temperature in present work. It is found that even after ball milling treatment of original …

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 …

In present study, the sintering process and superconducting properties of MgB 2 prepared
with milled original powders of Mg, B, and 3 at.% Graphite were investigated. It was found …

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 …

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 successfully prepared by Cu-doping sintering at 575 C for only 5 h,
exhibiting an obvious decrease in the sintering time at low temperature. According to the …

The ex-situ method to prepare MgB _ 2 2 superconductors is favorable in terms of bulk
density compared to the in-situ method. Since the packing factor of ex-situ MgB _ 2 2 is …

The minor Cu (< 3at%) addition could significantly reduce the amount of MgO impurity in the
in situ sintered MgB2 samples and thus improve the critical current density (Jc) at low field …

In present work, the sintering process and superconducting properties of graphite doped
MgB _ 2 2 prepared with milled B original powder were investigated. It is found that ball …

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 …