197 citations · 651 across the 9 of their papers we have counts for
9 papers
Enhancement of in-field Jc in MgB2/Fe wire using single and multi-walled nanotubes
J. H. Kim, W. K. Yeoh, M. J. Qin +6
We investigated the doping effects of SWCNTs and MWCNTs on the Tc, lattice parameters, Jc(B), microstructure, and Hc2 of MgB2/Fe wire. These effects systematically showed the follo…
The doping effect of multiwall carbon nanotube on MgB2/Fe superconductor wire
J. H. Kim, W. K. Yeoh, M. J. Qin +2
We evaluated the doping effect of two types of multiwall carbon nanotube (CNT) with different aspect ratios on MgB2/Fe monofilament wires. Relationships between microstructure, mag…
On the sample size dependence of the critical current density in MgB superconductors
M. J. Qin, S. Keshavarzi, S. Soltanian +3
Sample size dependent critical current density has been observed in magnesium diboride superconductors. At high fields, larger samples provide higher critical current densities, wh…
Significant enhancement of flux pinning in MgB2 superconductor through nano-Si addition
X. L. Wang, S. H. Zhou, M. J. Qin +4
Polycrystalline MgB2 samples with 10 wt % silicon powder addition were prepared by an in-situ reaction process. Two different Si powders, one with coarse (44 mm) and the other with…
Transport critical current density in Fe-sheathed nano-SiC doped MgB2 wires
Shi X. Dou, Joseph Horvat, Saeid Soltanian +5
The nano-SiC doped MgB2/Fe wires were fabricated using a powder-in-tube method and an in-situ reaction process. The depression of Tc with increasing SiC doping level remained rathe…
Evidence for Transition Temperature Fluctuation Induced Pinning im MgB Superconductor
M. J. Qin, X. L. Wang, H. K. Liu +1
The magnetic field dependent critical current density of a MgB bulk sample has been obtained by means of magnetization hysteresis measurements. The curves at…