Results 31 to 40 of about 21,457 (258)

Investigation of The Effect of Temperature on The Structural and Magnetic Properties of MgB2 Superconductor Produced Using Boron Doped with Carbon by CVD Method

Gazi Üniversitesi Fen Bilimleri Dergisi, 2021
Carbon, which is known to play a improvement role on the superconductivity properties of MgB2, was doped into MgB2 by CVD (chemical vapor deposition) method, and the change of structural and magnetic properties observed in MgB2 in relation to the ...
Naki KAYA, Şükrü ÇAVDAR, Haluk KORALAY   +2 more
doaj   +1 more source

Manufacturing of the stainless-steel sheathed magnesium diboride superconductor wire [PDF]

Science of Sintering
The Powder in Tube (PIT) method was utilized to manufacture the MgB2-based monofilament wire. The ground powders of Mg and B were filled in the stainless-steel tube and went through a cold-rolling process.
Yudanto Sigit Dwi, Affandi Ahmad Sigit, Manaf Azwar   +2 more
doaj   +1 more source

Effect of the sintering temperature on the microstructure and superconducting properties of MgB2 bulks manufactured by the field assisted sintering technique

Superconductors Science and Technology, 2020
Magnesium diboride (MgB2) bulk superconductors may have practical applications as permanent magnets owing to their ability to trap larger fields than conventional ferromagnets and a transition temperature of 39 K that make them attractive for use in ...
G. Matthews, Sangeeta Santra, Runsen Ma, C. Grovenor, Patrick S. Grant, S. Speller   +5 more
semanticscholar   +1 more source

Enhancement of charging and discharging rates for partially insulated MgB2 magnets composed of Cr-coated MgB2 superconducting wires

Results in Physics, 2019
In this paper, we propose the use of Cr-coated MgB2 wires to enhance the charging/discharging rates of the MgB2 magnet fabricated with a partial insulation (PI) winding technique that can provide a self-protecting feature to the magnet.
Y.G. Kim, J.M. Kim, K.H. Kim, H.S. Noh, H.S. Kim, D.Y. Hwang, H.G. Lee   +6 more
doaj   +1 more source

Dense MgB2 Ceramics by Ultrahigh Pressure Field-Assisted Sintering

Ceramics, 2020
Magnesium diboride (MgB2) ceramics, due to their impressive transition temperature of 39 K for superconductivity, have been widely investigated. The possibility to obtain highly dense MgB2 ceramics with fine microstructure and grain boundaries acting as ...
M. Prakasam, F. Balima, J. Noudem, A. Largeteau   +3 more
semanticscholar   +1 more source

MgB2 tunnel junctions with native or thermal oxide barriers

, 2006
MgB2 tunnel junctions (MgB2/barrier/MgB2) were fabricated using a native oxide grown on the bottom MgB2 film as the tunnel barrier. Such barriers therefore survive the deposition of the second electrode at 300oC, even over junction areas of ~1 mm2 ...
Gandikota, R., Kim, J., Newman, N., Rowell, J. M., Singh, R. K.   +4 more
core   +1 more source

The influence of Sm2O3 dopant on structure, morphology and transport critical current density of MgB2 wires investigated by using the transmission electron microscope

Journal of Magnesium and Alloys
This study reports results for the morphology, crystal structure and critical parameters of Sm2O3-doped MgB2 wires with low and high initial filling densities.
Daniel Gajda, Michał Babij, Andrzej Zaleski, Doğan Avci, Fırat Karaboga, Hakan Yetis, Ibrahim Belenli, Dariusz Zasada, Damian Szymański, Małgorzata Małecka, Wojciech Gil, Tomasz Czujko   +11 more
doaj   +1 more source

Self-Propagating High Temperature Synthesis of MgB2 Superconductor in High-Pressure of Argon Condition

Eurasian Chemico-Technological Journal, 2017
Magnesium diboride can be synthesized under argon ambient, elevated or high pressures. High-pressure syntheses are promising methods for manufacturing of the bulk MgB2 superconductor material.
S. Tolendiuly, S. M. Fomenko, G. C. Dannangoda, K. S. Martirosyan   +3 more
doaj   +1 more source

Phase formation of polycrystalline MgB2 at low temperature using nanometer Mg powder

, 2004
The MgB2 superconductor synthesized in a flowing argon atmosphere using nanometer magnesium powder as the raw materials, denoted as Nano-MgB2, has been studied by the technique of in-situ high temperature resistance measurement (HT-RT measurement).
Buzea, Canfield, Canfield, Chinping Chen, Feng, Feng, Feng, Flükiger, Gurevich, Jun Xu, Nagamatsu, Qing-rong Feng, Xing-guo Li, Yu-hao Wang, Zeng, Zeng-jun Zhou, Zheng-xiang Gao   +16 more
core   +1 more source

High performance, advanced-internal-magnesium-infiltration (AIMI) MgB2 wires processed using a vapor-solid reaction route

Superconductors Science and Technology, 2020
MgB2 superconducting wires made using a Mg infiltration method have reached a higher performance than either in-situ or ex-situ mixed powder based routes.
F. Wan, M. Sumption, M. Rindfleisch, C. Thong, M. Tomsic, E. Collings   +5 more
semanticscholar   +1 more source