A5006011289- Superconductivity in MgB2 and Alloys
- Iron-based superconductors research
- Physics of Superconductivity and Magnetism
- Magnesium Alloys: Properties and Applications
The Ohio State University
2012-2014
Recent advances in MgB2 conductors are leading to a new level of performance. Based on the use proper powders, chemistry, and an architecture which incorporates internal Mg diffusion (IMD), dense structure with not only high critical current density Jc, but also engineering density, Je, can be obtained. In this paper, series these advanced (or second - generation, "2G") has been prepared. Scanning electron microscopy associated energy dispersive X-ray spectroscopy were applied characterize...
A series of MgB2 superconducting composite strands co-doped with Dy2O3 and C were prepared via an advanced internal Mg infiltration (AIMI) route.The transport properties layer growth studied in terms the doping level, reaction temperature, time. Transport studies showed that both critical current densities, Jcs, irreversibility fields, Birrs, increased doping. The highest Jc was 1.35 x 10^5 A/cm2 at 4.2 K, 10 T, 30% higher than best AIMI wires without "non-barrier" reached 3.6 10^4 which...
In this paper, a series of high-performing powder-in-tube MgB <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> strands have been prepared. Transport voltage-current measurements were performed to determine the effects C doping and strand geometry such as filament numbers. The best <i xmlns:xlink="http://www.w3.org/1999/xlink">J</i> xmlns:xlink="http://www.w3.org/1999/xlink">c</sub> for our samples was 1.0 × 10 <sup...