Yazar "Erdem O." için listeleme
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Comparison of Levitation Forces of Bulk MgB2 Superconductors Produced by Nano Boron and Carbon-Doped Nano Boron
Duz I.; Guner S.B.; Erdem O.; Demir I.; Kapucu V.; Çelik Ş.; Ozturk K.; Hossain S.; Gencer A.; Yanmaz E. (Springer New York LLC, 2014)MgB2 bulk superconductors were prepared by hot press plus furnace heating method. Two types of boron powders were used, one is amorphous nano boron and the other is C-doped boron. Characteristics of superconductors were ... -
Effect of Er doping on the superconducting properties of porous MgB2
MgB2 bulk sample with porous structure was produced by using the in-situ solid-state reaction method under argon (Ar) atmosphere of 10 bar. Elemental Er in powder form was doped into MgB2 with different compositions ... -
Effect of laser irradiation on activation energy, irreversibility field and upper critical magnetic field of bulk MgB2 superconductor
In this study, the role of laser irradiation on the upper critical field (Hc2), the irreversibility field (Hirr) and the activation energy (U0) of bulk MgB2 superconductor was first time investigated with the aid of ... -
Effect of laser irradiation on superconducting properties of bulk MgB2 sintered at different temperatures
The surfaces of MgB2 bulk samples produced by a pellet/closed tube method at two different sintering temperatures of 650 and 850 °C, after hot pressing at 200 °C, were irradiated with the same irradiation dose by using an ... -
Effects of initial cooling conditions and measurement heights on the levitation performance of bulk MgB2 superconductor at different measurement temperatures
Erdem O.; Ozturk K.; Guner S.B.; Celik S.; Yanmaz E. (Springer New York LLC, 2014)The levitation properties of MgB2 prepared by hot press at 200 ° C and then pellet/closed tube method has been investigated. The vertical and lateral levitation forces (Fz and Fx) on a cylindrical NdFeB permanent magnet ... -
Enhanced Pinning Properties of Laser-Irradiated Bulk MgB2 Superconductors
In order to investigate the effect of laser irradiation on the superconducting properties of MgB2, a pellet-shaped sample was produced and cut into two pieces. The dot-shaped molten patterns, with the distance of 100 µm ... -
Improvement in levitation force performance of bulk MgB2 superconductors through coronene powder adding
Erdem O.; Abdioglu M.; Guner S.B.; Celik S.; Kucukomeroglu T. (Elsevier Ltd, 2017)The effect of coronene (C24H12) addition on the levitation force properties of MgB2 superconductor has been investigated for the first time in this study. The polycrystalline disk-shaped MgB2 + y wt % C24H12 samples (y = ... -
Influence of coronene addition on some superconducting properties of bulk MgB2
This study reports the effect of coronene (C24H12) addition on some superconducting properties such as critical temperature (Tc), critical current density (Jc), flux pinning force density (Fp), irreversibility field (Hirr), ... -
Lateral Position Effect of Auxiliary Permanent Magnets on the Magnetic Force Properties of Cylindrical YBCO
Abdioglu M.; Kabaer M.; Ozturk K.; Erdem O.; Celik S. (Springer New York LLC, 2017)The magnetic levitation force (MLF) and the guidance force (GF) should be improved for loading capacity and stability of Maglev systems, respectively. Although there are some ways to increase these properties, using of ...