An autoxidation treatment of short-time milled original powders was introduced for the
synthesis of MgB 2 superconductors and the critical current density J c of the sintered MgB 2 …

Ceramic MgB2 superconductor has great potential for applications in the devices. Doping
MgB2 with carbon or SiC has been successful in improving critical current density Jc, the …

MgB2 nanoparticles were synthesized by a one-step reactive sintering method. The sample
was heated from room temperature to 994K, and then directly cooled down at a rate of …

Though low-temperature sintering of MgB2 superconductors below Mg melting point can
effectively depress volatility of Mg and increase sintering density, its development was …

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 …

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 …

Abstract The effects of $ MgB_4 $ addition on the superconducting properties and the
microstructure of in situ processed $ MgB_2 $ bulk superconductors were studied. $ MgB_4 …

The improved critical current density was obtained for ex-situ MgB 2 bulks initially sintered at
900° C for 2 h and then at 650° C for 1 h. It was found that local liquid Mg phase sintering 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 …

MgB2 polycrystalline bulk samples with additions of 0, 5, 10 and 20% wt.% nano-sized BN
powders were prepared using the reaction in-situ method. All the samples were sintered at …