Yazar "Çelik, Şükrü" için FEF, Fizik Bölümü Koleksiyonu listeleme
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Investigation of some superconducting properties of ytterbium diffusion-doped YBa2Cu3O7-x superconductors
Öztürk, K.; Çelik, Şükrü; Çevik, U.; Yanmaz, E. (Elsevier, 2008)The effect of Yb diffusion on structural evolution and superconducting properties of YBa2Cu307-x (Y123) prepared in the bulk polycrystalline form were studied. The ytterbium (Yb) diffusion in superconducting Y123 ceramic ... -
Investigation of the dependency of the upper critical magnetic field on the content x in Y1-xYbx/2Gdx/2Ba2Cu3O7-y superconducting structures
Çelik, Şükrü; Öztürk, K.; Çevik, Uğur; Yanmaz, E. (Elsevier, 2008)The Y1-xYbx/2Gdx/2Ba2Cu3O7-y superconducting samples for x = 0.0, 0.2, 0.4, 0.6, 0.8 and 1.0 were prepared by using the solid-state reaction technique. Resistivity measurements of the samples were performed in QD-PPMS ... -
Investigation on the levitation force behaviour of malic acid added bulk MgB2 superconductors
Savaşkan, Burcu; Koparan, Ezgi Taylan; Çelik, Şükrü; Öztürk, Kemal; Yanmaz, Ekrem (Elsevier, 2014)The effects of malic acid addition (from 0 to 15 wt% of the total MgB2) on the levitation force properties of bulk MgB2 have been investigated. All samples were prepared from magnesium powder, amorphous boron powder, malic ... -
The investigation on the regional nanoparticle Ag doping into MgTi0.06B2 bulk for improvement the magnetic levitation force and the bulk critical current
Öztürk, Kemal; Dancer, Claire E. J.; Savaşkan, Burcu; Aksoy, Canan; Güner, Sait Barış; Badica, Petre; Aldica, Gheorghe V.; Çelik, Şükrü (Elsevier Science Sa, 2017)Fabrication methods are important way to improve structural and superconducting properties of MgB2 such as critical current, magnetic levitation force (MLF) and magnetic field trapping capability. Although the graded ... -
IR laser line scanning treatments to improve levitation forces in MgTi0.06B2 bulk materials
Öztürk, Kemal; Aksoy, Canan; Angurel, Luis Alberto; Savaşkan, Burcu; Martinez, Elena; Badia-Majos, Antonio; De La Fuente, German F.; Güner, Sait Barış; Dancer, Claire E. J.; Çelik, Şükrü (Elsevier Science Sa, 2019)Infrared (IR) laser-line scanning has been widely used to induce different surface microstructures in a broad range of materials. in this work, this laser configuration was applied on the surface of MgTi0.06B2 bulk samples ... -
Lateral force measurements for (Gd123)(1-x) :(Gd211) (x) superconductors at different temperatures
Güner, Sait Barış; Çelik, Şükrü; Cansız, Ahmet; Öztürk, Kemal (Springer, 2017)The lateral levitation force between melt-textured (Gd123)(1-x) :(Gd211) (x) bulk superconductors for x = 0.0, 0.1, 0.2, 0.3, 0.4, and 0.5 and a permanent magnet is measured at 30, 40, 50, 60, and 77 K under zero-field-cooling ... -
Levitation force at different temperatures and superconducting properties of nano-structured MgB2 superconductors
Yanmaz, E.; Öztürk, K.; Dancer, C.E.J.; Başoğlu, M.; Çelik, Şükrü; Grovenor, C.R.M. (Elsevier, 2010)The levitation and pinning force properties of nanocrystalline MgB2 superconductors prepared by a mechanical alloying technique with varying milling duration have been investigated. Levitation force measurements under ... -
Magnetic levitation force and trapped field properties of multiseeded YBCO with triangular arrangement of seeds
Abdioğlu, Murat; Güner, Sait Barış; Öztürk, Kemal; Yang, Chiaming; Chen, Ingann; Çelik, Şükrü (Wiley, 2021)Although there are studies in literature using different number of seeds with different arrangements, especially line and rectangular, it is seen that there is no detailed study handling the levitation force together with ... -
Magnetic properties of the welded joined TSMG Y123+x wt% Y211 (x=20 and 30) bulk superconductors
Çakır, Banu; Öztürk, Kemal; Güner, Sait Barış; Çelik, Şükrü; Aydıner, Alev (Elsevier, 2019)Although the welding techniques have been used to join for bulk YBCO superconductors with a sintered superconductor, similar technique as a Ag2O added bulk YBCO superconductor fabricated by melt-powder-melt-growth process ... -
The size effect on the magnetic levitation force of MgB2 bulk superconductors
Savaşkan, Burcu; Koparan, Ezgi Taylan; Güner, Sait Barış; Çelik, Şükrü; Yanmaz, Ekrem (Elsevier Sci Ltd, 2016)In this study, the size effect on the magnetic levitation performance of disk-shaped MgB2 bulk superconductors and permanent magnets was investigated. MgB2 samples with varying diameters of 13 mm, 15 mm and 18 mm, each of ...