Yazarlar

• Abdioglu, M.(10)
• Abdioglu, Murat(10)
• Ozturk, K.(9)
• Ozturk, Kemal(6)
• Celik, S.(4)
• Celik, Sukru(4)
• Kabaer, M.(4)
• Savaskan, Burcu(4)
• Cansiz, A.(3)
• Erdem, O.(3)
• Guner, Sait Baris(3)
• Mollahasanoglu, Hakki(3)
• Yanmaz, E.(3)
• Cansiz, Ahmet(2)
• Dilek, Durukan Burak(2)
• Ekici, M.(2)
• Gedikli, Hasan(2)
• Guner, S. B.(2)
• Guner, S.B.(2)
• Kucukomeroglu, T.(2)
• Ozturk, U. Kemal(2)
• Abderrahmane, Babe Cheikh(1)
• Abdioğlu, Murat(1)
• Acar, S.(1)
• Badia-Majos, Antonio(1)
• Badica, P.(1)
• Bahadir, M. V.(1)
• Bolat, S.(1)
• Chen, Ingann(1)
• Demir, I.(1)
• Demirci, M.(1)
• Duz, I.(1)
• Ekici, Mehmet(1)
• Enculescu, M.(1)
• Erdem, Ozge(1)
• Gedikli, H.(1)
• Gencer, A.(1)
• Güner, Sait Barış(1)
• Hossain, S.(1)
• Ionescu, A. M.(1)

• MakaleAçık Erişim2015Scopus SJRQ2/r/bayburt/12499
  The effect of magnetic field distribution and pole array on the vertical levitation force properties of HTS Maglev systems

  Ozturk, Kemal; Abdioglu, Murat; Sahin, Ercin; Celik, Sukru; Gedikli, Hasan; Savaskan, Burcu

  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 permanent-magnet guideway (PMG) was calculated by numerical analysis based on the finite-element method. It was shown in this study that the vertical levitation capability and stability of Maglev systems can be improved depending on the cooling regime, pole number, and suitable arrangement of the PMG. In this paper, it was shown that when the pole number increases, the levitation force density increases. It also appeared that the reasonable position of the supplementary permanent magnet and appropriate cooling heights are key parameters for both levitation performance and stabilization of the high-temperature superconductor (HTS) Maglev. It is believed that the numerical and experimental data in this paper are useful for relative design and practical application of HTS Maglev systems.

  AtıfScopus38·WoS33·OpenAlex36

  İncele
• MakaleAçık Erişim2014Scopus SJRQ3/r/bayburt/10800
  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, S.; Ozturk, K.; Hossain, S.; Gencer, A.; Yanmaz, E.

  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 determined by XRD and resistance measurements. Systematic levitation force measurements were performed by using a modular system at low temperatures. These bulk superconductors showed around 9 N repulsive and 4 N attractive forces in the z-axis at 20 K at closest point to the cryostat lid which contains the MgB2 superconductor. These values slightly decreased by increasing temperature to 24 and 28 K for both samples. Comparing two samples, nano boron MgB2 showed slightly higher levitation force than C-doped MgB2 although C-doped MgB2 has higher attractive force value at the closest point. This situation points out that C-doped MgB2 is much proper for attractive force applications (as guidance force) while the nanoboron MgB2 sample is much appropriate for repulsive force (as levitation).

  AtıfScopus13·WoS13·OpenAlex17

  İncele
• MakaleYalnız künye2012Scopus SJRQ3/r/bayburt/13958
  Effect of magnetic flux distribution and magnetic powder addition on the magnetic levitation force of Sm123 superconductors

  Abdioglu, M.; Ozturk, K.; Kutuk, S.; Bolat, S.; Yanmaz, E.

  Sm123 and Sm211 were prepared by melt-powder-melt-growth and solid-state-reaction techniques, respectively, to have the nominal composition of (Sm123) 0.75 (Sm211) 0.25. After the preparation of this composition, the Fe-B magnetic powder (MP) was added to the composition for 0.000, 0.010, 0.015, 0.025, 0.050 wt.% to investigate the effect of MP addition on the levitation force density (LFD). Additionally, different permanent magnets (PM) were used as magnetic-field source to investigate the effect of magnetic-field gradient on the LFD of MP added superconductors. Our findings indicate that the MP addition acts as a flux pinning centre in the sample and enhances the LFD up to 0.025 wt.% adding amount, and the optimum flux gradient which produces a screening current in the sample occurs when the B/d (magnetic-field intensity/ diameter of PM) ratio is equal to 0.060. These results imply that the experimental data can be useful for fabricating process of superconducting samples with larger MLF values, and designing of superconducting magnets, flywheel energy storage and maglev systems.

  AtıfScopus10·WoS10·OpenAlex10

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