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Yazar "Madre, MA" için listeleme

Yazar "Madre, MA" için listeleme

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  • Relationship Between Annealing Time and Magnetic Properties in Bi-2212 
    Ozcelik, B; Ozkurt, B; Yakinci, ME; Sotelo, A; Madre, MA (2013)
    In this study, we report the physical and magnetic properties of Bi2Sr2CaCu2O (x) textured materials prepared by a LFZ melting technique and annealed for different times (60, 72, 96 and 120 h). SEM images of the annealed ...
  • Effect of Fe Substitution for Cu on Microstructure and Magnetic 
    Ozabaci, M; Sotelo, A; Madre, MA; Yakinci, ME (2013)
    In this paper, the laser floating zone (LFZ) technique has been used to fabricate Bi2Sr2Ca1Cu2-x Fe (x) O (x=0,0.01,0.03,0.05,0.1) superconducting fibers. The effects of Fe substitution on grain alignment and superconducting ...
  • Relationship Between Growth Speed and Magnetic Properties in Bi-2212/Ag 
    Ozkurt, B; Madre, MA; Sotelo, A; Yakinci, ME; Ozcelik, B; Diez, JC (2013)
    In this paper, the measured magnetic properties of Bi2Sr2CaCu2O (x) /3 wt.% Ag textured composite materials prepared by a LFZ melting technique at different growth speeds (5, 15, 30, and 60 mm/h) are presented. X-ray ...
  • Structural and Superconducting Properties of Magnetically Doped Bi-2212 
    Yakinci, ME; Madre, MA; Ozabaci, M; Sotelo, A (2013)
    In this work, we have applied the laser floating zone technique, a well-known method to produce highly aligned crystals and dense morphology, with improved transport properties, to obtain Bi2Sr2Ca1Cu2-x Ni (x) O (x=0, 0.01, ...
  • Growth Speed and Substitution Effects on Alignment and Thermal Transport 
    Ozabaci, M; Rasekh, S; Kizilaslan, O; Madre, MA; Sotelo, A; Yakinci, ME (2015)
    Fe-substituted superconducting thin BiSrCaCuO rods with nominal compositions of Bi2Sr2Ca1Cu2-x Fe (x) O8+delta (x = 0, 0.01, 0.03, 0.05, and 0.1) were fabricated using the laser floating zone technique at two different ...
  • Decrease of Ca3Co4O9+delta thermal conductivity by Yb-doping 
    KIirat, G; Aksan, MA; Rasekh, S; Madre, MA; Diez, JC; Sotelo, A (2015)
    In this study, the effect of Yb-substitution on the structural, electrical and thermal transport properties of the Ca3Co4O9+delta system has been investigated in the low temperature region (between 10 and 300 K). The ...
  • Grain alignment and its relationship with superconductivity and thermal 
    Ozabaci, M; Kizilaslan, O; Madre, MA; Yakinci, ME; Sotelo, A (2015)
    The microstructure, grain alignment, superconducting and thermal transport properties of Ni-substituted Bi-2212 rods grown at two different speeds (15 and 30 mm h(-1)) through the Laser Floating Zone method, have been ...
  • Effect of Secondary Annealing Process on Critical Current Density in 
    Aksan, MA; Madre, MA; Rasekh, S; Constantinescu, G; Torres, MA; Diez, JC; Sotelo, A; Yakinci, ME (2015)
    Bi-2212 samples prepared by a solid-state reaction technique have been grown from the melt using the laser floating zone method. After annealing the as-grown bars, the samples showed a good grain alignment and a high ...
  • The Effect of K Substitution on Magnetoresistivity and Activation Energy 
    Ozcelik, B; Yalaz, E; Yakinci, ME; Sotelo, A; Madre, MA (2015)
    In the present work, magnetoresistivity performance of polycrystalline Bi2Sr2Ca1-x K (x) Cu-2 O (8+y) superconductor with x=0.0,0.05,0.075, and 0.1 has been studied by change of flux pinning mechanism, using magnetoresistivity ...
  • Enhancement of magnetic relaxation behavior by texturing in Bi-2212 
    Ozabaci, M; Kizilaslan, O; Kirat, G; Aksan, MA; Madre, MA; Sotelo, A; Yakinci, ME (2016)
    Time decay of magnetization, known as magnetic relaxation, is crucial for both fundamental and applied point of view in bulk high temperature superconductors (HTS) by setting the limits to the HTS devices stability. ...