Fully dense MgB2 superconductor textured by hot deformation
نویسندگان
چکیده
منابع مشابه
Microstructure of the highly dense MgB2 Superconductor by TEM
The microstructure of the MgB2 superconductor sintered at high temperature under a high pressure of ∼ 3 GPa was investigated by using a highresolution transmission electron microscope (HRTEM). The TEM images did not show any pores in the specimen. All grains were compactly connected, and no discernable empty spaces or impurities at the boundaries existed over the regions investigated. The HRTEM...
متن کاملMicrostructure of the highly dense MgB2 superconductor by transmission electron microscope
The microstructure of the MgB2 superconductor sintered at high temperature under a high pressure of ∼ 3 GPa was investigated by using a highresolution transmission electron microscope (HRTEM). The TEM images did not show any pores in the specimen. All grains were compactly connected, and no discernable empty spaces or impurities at the boundaries existed over the regions investigated. The HRTEM...
متن کاملMagnetotransport 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 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 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...
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ژورنال
عنوان ژورنال: Journal of Alloys and Compounds
سال: 2001
ISSN: 0925-8388
DOI: 10.1016/s0925-8388(01)01619-x