Kurum Yazarı "Çelik, Şükrü" WoS İndeksli Yayınlar Koleksiyonu İçin Listeleme
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Analysis of indentation size effect (ISE) behavior in low-load Vickers microhardness testing of (Sm123)(1-x)(Nd123)(x) superconductor system
Çelik, Şükrü; Öztürk, O.; Coşkun, Emrah; Sarıhan, Mustafa; Asikuzun, Elif; Öztürk, Kemal; Terzioğlu, Cabir (Springer, 2013)Indentation size effect (ISE) for (Sm123)(1-x) (Nd123)(x) superconducting samples which were fabricated by the solid state reaction technique for values of x = 0.00, 0.05, 0.10, 0.20, and 0.30 was investigated by analyzing ... -
Comparison of levitation forces of bulk MgB2 superconductors produced by nano boron and carbon-doped nano boron
Düz, I.; Güner, Sait Barış; Erdem, Oğuz; Demir, İsmail; Kapucu, V.; Çelik, Şükrü; Öztürk, Kemal; Hossain, Shahriar; Gencer, Ali G.; Yanmaz, Ekrem (Springer, 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 adding on the critical current density and lateral levitation force of bulk
Savaşkan, Burcu; Koparan, Ezgi Taylan; Güner, Sait Barış; Çelik, Şükrü; Öztürk, Kemal; Yanmaz, Ekrem (Springer/Plenum Publishers, 2015)We fabricated malic acid -added bulks by wet mixing and "Two-step solid state reaction method". the effects of adding malic acid on , behaviour and lateral levitation force features of bulk have been investigated. A ... -
The effect of magnetic field distribution and pole array on the vertical levitation force properties of HTS maglev systems
Öztürk, Kemal; Abdioğlu, Murat; Şahin, Erçin; Çelik, Şükrü; Gedikli, Hasan; Savaşkan, Burcu (Ieee-Inst Electrical Electronics Engineers Inc, 2015)In this paper, the levitation force measurements have been carried out by the magnetic force measurement system under both field-cooling and zero-field-cooling regimes, whereas the magnetic field distribution over the ... -
Effects of initial cooling conditions and measurement heights on the levitation performance of bulk MgB superconductor at different measurement temperatures
Erdem, Osman Ayhan; Öztürk, Kemal; Güner, Sait Barış; Çelik, Şükrü; Yanmaz, Ekrem (Springer/Plenum Publishers, 2014)The levitation properties of MgB prepared by hot press at 200 C and then pellet/closed tube method has been investigated. the vertical and lateral levitation forces ( and on a cylindrical NdFeB permanent magnet (PM) below ... -
Improvement of superconducting properties of MgB2 by changing the argon ambient pressure and sintering conditions
Savaşkan, Burcu; Öztürk, Kemal; Çelik, Şükrü; Yanmaz, Ekrem (Institute of Physics Publishing, 2009)We have investigated various characteristic properties depending on sintering conditions of MgB2 samples prepared by the standard solid state reaction method. It is inferred from experimental results that the crystallinity ... -
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 ...