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Effect Of Sucrose (C12h22o11) Doping On The Critical Current Density Of Mgb2, Y. Zhang, S. Zhou, Alexey Pan, S. X. Dou
Effect Of Sucrose (C12h22o11) Doping On The Critical Current Density Of Mgb2, Y. Zhang, S. Zhou, Alexey Pan, S. X. Dou
Shi Xue Dou
MgB2 bulk samples doped with sucrose were fabricated with the formula MgB2-x Cx ( x= 0, 0.08, 0.12, 0.2, 0.3, 0.5). Appropriate amounts of sucrose corresponding to the desired carbon content were added. The doping effect of sucrose was observed. It was found that samples doped with x = 02 sucrose have optimized current density at high magnetic field. The optimized sintering temperature for high current density was found to be 850 C. H 2 and H irr were both found to be improved due to the sucrose doping.
Effect Of Grain Size And Doping Level Of Sic On The Superconductivity And Critical Current Density In Mgb/Sub 2/ Superconductor, Saeid Soltanian, Xiaolin Wang, J. Horvat, M. J. Qin, Hua-Kun Liu, P. R. Munroe, S. X. Dou
Effect Of Grain Size And Doping Level Of Sic On The Superconductivity And Critical Current Density In Mgb/Sub 2/ Superconductor, Saeid Soltanian, Xiaolin Wang, J. Horvat, M. J. Qin, Hua-Kun Liu, P. R. Munroe, S. X. Dou
Shi Xue Dou
SiC doped MgB/sub 2/ polycrystalline samples were fabricated by in-situ reaction using different grain sizes (20 nm, 100 nm, and 37 /spl mu/m) of SiC and different doping levels (0, 8, 10, 12, 15 wt%). Phases, microstructures, superconductivity, critical current density and flux pinning have been systematically investigated using XRD, SEM, TEM, and magnetic measurements. Results show that grain sizes of the starting precursors of SiC have a strong effect on the critical current density and its field dependence. The smaller the SiC grains are, the better the J/sub c/ field performance is. Significant enhancement of J/sub c/ and the …