Enhanced critical parameters of nanocarbon doped MgB2 superconductor
نویسندگان
چکیده
منابع مشابه
Magnetotransport study of MgB2 superconductor
1 Institute of Low Temperature and Structural Research, Polish Academy of Sciences, PL-50-950 Wroclaw, Poland 2 Department of Chemistry, University of Warsaw, Al. Zwirki i Wigury 101, PL-02-089 Warsaw, Poland 3 Department of Physics, Aoyama-Gakuin University, Tokyo, Japan 4 SUPRATECS, Montefiore Institute of Electricity B28, University of Liege, Sart Tilman, B-4000 Liege, Belgium 5 SUPRATECS, I...
متن کاملThe Effect of Anisotropy of Hc2 on Transport Current in Silicone Oil-Doped MgB2 Superconductor
The temperature and magnetic field dependences of the critical current density in silicone oil-doped MgB2 polycrystalline samples have been investigated by magnetic measurements. The upper critical magnetic field anisotropy, γ = H⊥c c2 /H ||c c2 dependence of the critical current density, Jc(B), were analyzed within the percolation model. The calculated critical current densities based on perco...
متن کاملPreparation and Characterization of MgB2 Superconductor
Superconducting MgB2 crystallites having a size up to 3 X 2 X 1 mm have been grown using a liquidassisted-sintering process under atmospheric pressure of argon. The magnetization measurements have been carried out on MgB2 samples to determine upper critical field, critical current density and irreversibility line. The obtained values of critical current density and upper critical field were ~10...
متن کاملPermanent magnet with MgB2 bulk superconductor
Superconductors with persistent zero-resistance currents serve as permanent magnets for high-field applications requiring a strong and stable magnetic field, such as magnetic resonance imaging (MRI). The recent global helium shortage has quickened research into high-temperature superconductors (HTSs)—materials that can be used without conventional liquid-helium cooling to 4.2 K. Herein, we demo...
متن کاملEnhancement of the critical current density and flux pinning of MgB2 superconductor by nanoparticle SiC doping
Doping of MgB2 by nano-SiC and its potential for the improvement of flux pinning were studied for MgB22x(SiC)x/2 with x50, 0.2, and 0.3 and for 10 wt % nano-SiC-doped MgB2 samples. Cosubstitution of B by Si and C counterbalanced the effects of single-element doping, decreasing Tc by only 1.5 K, introducing intragrain pinning centers effective at high fields and temperatures, and significantly e...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Applied Physics
سال: 2009
ISSN: 0021-8979,1089-7550
DOI: 10.1063/1.3186048