Nano-Y2O3 Katkılı Bizmut Esaslı Süperiletken Malzemelerin Manyetik ve Mekanik Özelliklerinin İncelenmesi

Authors : Emine Burcu CEVİZCİ, Kemal KOCABAŞ, Sedt KURNAZ

Pages : 153-162

View : 63 | Download : 6

Publication Date : 2023-03-27

Article Type : Research Paper

Abstract :The effects of nano-Y2O3 addition on the structural, superconducting, magnetic and mechanical properties of Bi-2223 superconducting system were investigated in this study. Bulk polycrystalline samples with general formula of Bi1.8Pb0.4Sr2Ca 2Cu3O10 + δ + insert ignore into journalissuearticles values(Y2O3); with insert ignore into journalissuearticles values( x; weighted % 0.0-0.2-0.4-0.8-1.0); were prepared by solid state reaction method. X-ray diffraction insert ignore into journalissuearticles values(XRD);, Scanning Electron microscope insert ignore into journalissuearticles values(SEM);, Energy dispersive X-ray spectroscopy insert ignore into journalissuearticles values(EDX); mesurement, Vibrating sample mesurement insert ignore into journalissuearticles values(VSM);, Resistance- temperature insert ignore into journalissuearticles values(ρ-T); mesurement and Vickers microhardness mesurement insert ignore into journalissuearticles values(VHM); were also used for samples structural characterizations. XRD patterns showed that both Bi -2223 and Bi-2212 phases are coexist in the samples. While a lattice parameter increased, c lattice parameter decreased with increasing of nano-Y addition. In SEM photographs, it is seen that granular structure is plate-like in all samples and increase in the amount of additive, presence of point particles on the layered particles is seen more clearly. Hole concentration values that calculated from ρ-T mesurement, ranges from 0.113 to 0.160. While amount of nano-Y increased, critical transition temperatures decreased. VSM results showed that critical current density values increase with the addition of Nano-Y. VHM results showed that the hardness value increased until x= 0.4% additive sample and decreased after this value.
Keywords : nano Y2O3, BSSCO, Critical Current Density, Hole concentration, Microhardness

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