Yazar "Özçelik, Bekir" için listeleme
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The cooling rate effect on structure and flux pinning force of FeTeSe single crystal deposited by self-flux method
Farisoğullari, Derya; Güler, Nilay Kantarcı; Yakıncı, Kübra; Ekicibil, Ahmet; Karadağ, Faruk; Yakıncı, Mehmet Eyyuphan; Özçelik, Bekir (Springer, 2018)Synthesis and characterization of FeTe0.5Se0.5 single crystals prepared by self-flux technique with two different cooling rates of 1.45 and 5.83 a"integral/h have been investigated. The XRD results show that the samples ... -
Detail investigation of thermoelectric performance and magnetic properties of Cs-doped Bi2Sr2Co2Oy ceramic materials
Özçelik, Bekir; Gürsul, Mehmet; Çetin, Gizem; Özçelik, Can; Torres, M. A.; Madre, María Antonieta; Sotelo, Andrés E. (Springer, 2021)Bi2Sr2-xCsxCo2Oy materials with 0 <= x <= 0.15, have been fabricated via the classical ceramic technique. XRD results have indicated that undoped and Cs-substituted samples are composed of Bi2Sr2Co2Oy phase as the major ... -
Detailed low temperature studies on thermoelectric performance of K-doped Bi2Ca2Co2Oy ceramics fibers
Özçelik, Can; Depci, Tolga; Çetin, Gizem; Gürsul, Mehmet; Özçelik, Bekir; Madre, María Antonieta; Sotelo, Andrés; Ando, Hiroshi; Terashima, Kensei; Takano, Yoshihiko (Institute of Physics, 2022)The effect of K substitution for Ca in Bi2Ca2-xKxCo2Oy (x = 0.0, 0.05, 0.075, 0.10, and 0.125) thermoelectric ceramics, produced via laser floating zone (LFZ) method, have been systematically investigated. XRD patterns are ... -
Drastic microstructural modification of Bi2Ca2Co2Oyceramics by Na doping and laser texturing
Özçelik, Can; Depci, Tolga; Gürsul, Mehmet; Çetin, Gizem; Özçelik, Bekir; Torres, Miguel A.; Madre, Maria A.; Sotelo, Andres (Sociedad Espanola de Ceramica y Vidrio, 2022)Bi2Ca2-xNaxCo2Oy materials with x = 0 < x < 0.125, have been prepared either by sintering through the classical ceramic method, or textured using the laser floating zone technique. XRD results have shown that Bi2Ca2Co2Oy ... -
Effect of Carbon Nanotube Addition on the Superconducting Properties of BSCCO Samples Textured via Laser Floating Zone Technique
Özçelik, Bekir; Ergin, I.; Depci, Tolga; Yavuz, Halil İbrahim; Madre, María Antonieta; Sotelo, Andres (Springer, 2019)In this research, the effect of carbon nanotube (CNT) addition on the structural and superconducting properties of Bi2Sr2CaCu2Oy + x wt% CNT materials with x = 0, 0.5, 1, and 3 prepared by solid state method, followed by ... -
Low temperature thermoelectric properties of Na-substituted Bi2Ca2Co2Oy ceramics fabricated via LFZ technique
Özçelik, Bekir; Çetin, Gizem; Gürsul, Mehmet; Özçelik, Can; Depci, Tolga; Madre, María Antonieta; Sotelo, Andrés E.; Ando, Hiroshi; Terashima, Kensei; Takano, Yoshihiko (Elsevier, 2022)In this work, Bi2Ca2-xNaxCo2Oy with x = 0.0, 0.05, 0.10, and 0.125 thermoelectric ceramic materials have been produced by the classical solid-state route, followed by texturing through the laser floating zone (LFZ) method. ... -
Significant enhancement of superconducting performances of Bi-2212 fibers through combined sodium substitution and LFZ process
Gürsul, Mehmet; Ergin, I.; Özçelik, Can; Depci, Tolga; Özçelik, Bekir; Madre, María Antonieta; Sotelo, Andrés E. (Springer, 2021)This paper reports the microstructure, magnetoresistivity, electrical and superconducting properties of Bi-2212 fibers with Na+ ions incorporated into a superconducting matrix prepared by a polymer solution method and ... -
Tuning thermoelectric properties of Bi2Ca2Co2Oy through K doping and laser floating zone processing
Özçelik, Can; Depci, Tolga; Gürsul, Mehmet; Çetin, Gizem; Özçelik, Bekir; Torres, M. A.; Madre, María Antonieta; Sotelo, Andrés E. (Elsevier, 2021)In the present study, thermoelectric Bi2Ca2-xKxCo2Oy ceramic materials (x = 0.0, 0.05, 0.075, 0.10, and 0.125) in different forms (called bulk, as-grown and annealed fibers) have been manufactured via a classical solid-state ...
