Effect of doping by low content of yttrium at Ca and Sr sites of Bi (Pb)-2212 superconducting ceramics
In this work, a comparative study of the effect of doping by low content of Y3+ between (Ca
site) and out of (Sr site) the CuO2 planes of Bi (Pb)-2212 phase is presented. Ceramics of
Bi1. 6Pb0. 4Sr2Ca1− xYxCu2O8+ d (called CY series) and Bi1. 6Pb0. 4Sr2− xYxCaCu2O8+
d (called SY series) with x= 0, 0.025, 0.05, 0.075 and 0.1 are elaborated in air by
conventional solid state reaction. They are characterized by X-ray diffraction (XRD),
Scanning Electronic Microscopy (SEM), density, Vickers microhardness and resistivity …
site) and out of (Sr site) the CuO2 planes of Bi (Pb)-2212 phase is presented. Ceramics of
Bi1. 6Pb0. 4Sr2Ca1− xYxCu2O8+ d (called CY series) and Bi1. 6Pb0. 4Sr2− xYxCaCu2O8+
d (called SY series) with x= 0, 0.025, 0.05, 0.075 and 0.1 are elaborated in air by
conventional solid state reaction. They are characterized by X-ray diffraction (XRD),
Scanning Electronic Microscopy (SEM), density, Vickers microhardness and resistivity …
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