Doping effects of carbon and titanium on the critical current density of MgB2

TM Shen, G Li, CH Cheng, Y Zhao - Superconductor Science and …, 2006 - iopscience.iop.org
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 …

Effects of B4C doping on critical current properties of MgB2 superconductor

A Yamamoto, J Shimoyama, S Ueda… - Superconductor …, 2005 - iopscience.iop.org
The relationships between microstructures, crystallinity and critical current properties for B 4
C doped MgB 2 bulks, MgB 2− 5x (B 4 C) x with x= 0, 0.04, 0.1, 0.2 and 0.4, were …

Effects of nano-carbon doping and sintering temperature on microstructure and properties of MgB2

JH Lim, JH Shim, JH Choi, JH Park, W Kim… - Physica C …, 2009 - Elsevier
We fabricated nano-carbon (NC) doped MgB2 bulks using an in situ process in order to
improve the critical current density (Jc) under a high magnetic field and evaluated the …

Influence of microstructures and crystalline defects on the superconductivity of

A Serquis, XZ Liao, YT Zhu, JY Coulter… - Journal of Applied …, 2002 - pubs.aip.org
This work studies the influence of microstructures and crystalline defects on the
superconductivity of MgB 2, with the objective to improve its flux pinning. A MgB 2 sample …

Significant enhancement of critical current density and flux pinning in MgB2 with nano-SiC, Si, and C doping

XL Wang, S Soltanian, M James, MJ Qin… - Physica C …, 2004 - Elsevier
Polycrystalline MgB2 samples with addition of 0–10 wt% powders of SiC, Si and C were
prepared by an in situ reaction process. The phases, microstructures, and flux pinning were …

Influence of dopant particle size on the critical current properties and microstructures of MgB2 bulks doped with TiC and SiC

A Yamamoto, J Shimoyama, I Iwayama… - … and its applications, 2007 - Elsevier
The influence of dopant particle size on the critical current properties and microstructures of
the TiC doped and SiC doped MgB2 bulks were studied. XRD analysis revealed that …

Progress in Critical Current Density (Jc) in Sintered MgB2 Bulks

M Muralidhar, M Murakami - Journal of superconductivity and novel …, 2018 - Springer
The present paper focuses on methods of further improving the flux pinning and critical
current density of disk-shaped MgB 2 bulk superconductors by adding excess Mg metal in …

Effect of La doping on microstructure and critical current density of MgB2

C Shekhar, R Giri, RS Tiwari, DS Rana… - Superconductor …, 2005 - iopscience.iop.org
In the present study, La-doped MgB 2 superconductors with different doping levels (Mg 1− x
La x B 2; x= 0.00, 0.01, 0.03 and 0.05) have been synthesized by the solid-state reaction …

Superior critical current density obtained in MgB2 bulks via employing carbon-coated boron and minor Cu addition

J Peng, Y Liu, Z Ma, MS Al Hossain, Y Xin… - … C: Superconductivity and …, 2016 - Elsevier
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 …

Significant improvement in the critical current density of MgB2 bulks in situ sintered at low temperature by excess Mg addition

Z Ma, Y Liu, Q Cai, L Yu - Physica C: Superconductivity and its Applications, 2014 - Elsevier
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 …