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Lattice paramenter, lattice disorder and resistivity of carbohydrate doepd MgB2 and their correlation with the transition temperature
J. H. Kim, Sangjun Oh, X. Xu +4
The change in the lattice parameters or the lattice disorder is claimed as a cause of the slight reduction in the transition temperature by carbon doping in MgB2. In this work, an…
Improvement of Critical Current Density and Upper Critical Field in MgB2 using Carbohydrate
J. H. Kim, M. S. A. Hossain, X. Xu +6
We evaluated the doping effects of carbohydrate (malic acid, C4H6O5), from 0wt% to 30wt% of total MgB2, on the phase, lattice parameters, critical temperature, resistivity, and upp…
Solenoidal Coils Made from Monofilamentary and Multifilamentary MgB2 strands
M. D. Sumption, M. Bhatia, F. Buta +7
Three solenoids have been wound and with MgB2 strand and tested for transport properties. One of the coils was wound with Cu-sheathed monofilamentary strand and the other two with…
MgB2/Cu Racetrack Coil: Winding and Transport Testing
M. D. Sumption, M. Bhatia, M. Rindfleisch +3
A racetrack coil using MgB2/Cu strand has been fabricated and tested for transport current density at 4.2 K in self field. The monofilamentary strand was 1.0 mm OD and insulated wi…
Large Upper Critical Field and Irreversibility Field in MgB2 wires with SiC additions
M. D. Sumption, M. Bhatia, E. W. Collings +4
Resistive transition measurements are reported for Magnesium diboride strands with SiC dopants. The SiC was added as 10 mol of SiC to 90 mol of binary magnesium diboride. Three dif…
Transport and magnetic Jc of MgB2 strands and small helical coils
M. D. Sumption, M. Bhatia, M. Rindfleisch +2
The critical current densities of MgB2 monofilamentary strands with and without SiC additions were measured at 4.2 K. Additionally, magnetic Jc at B = 1 T was measured from 4.2 K t…