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Preparation and Characterization of Hot-Pressed and Sintered BiPbSrCaCuO Superconductor

¹ Department of Physics, Faculty of Science, Sohag University, Sohag, Egypt
² Department of Physics, Faculty of Science, Sohag University, Sohag, Egypt
³ Department of Physics, Faculty of Science, Taif University, Taif, KSA
⁴ Department of Physics, Faculty of Science, Ummulqura University, Mekka, KSA

New Journal of Glass and Ceramics·Volume 02 (2012)·Pages 75–84·Published 23 April 2012·DOI10.4236/njgc.2012.22011

Abstract

Powder compacts of the system Bi 2–x Pb x Sr 2 Ca 2 Cu 3 O y with 0 ≤ x ≤ 0.5 molar ratio using both techniques; isothermal hot pressing and the solid state reaction (sintering). The XRD of the hot pressed powder compacts of the nominal compositions Bi 2–x Pb x Sr 2 Ca 2 Cu 3 O y showed 2212 and 2223 phases. The resistivity temperature variations belonging to the composition Bi 1.8 Pb 0.2 Sr 2 Ca 2 Cu 3 O y showed metal-superconducting transition at T ons = 143 K for the annealed sample for 24 h. The annealed nominal composition Bi 1.5 Pb 0.5 Sr 2 Ca 2 Cu 3 O y for 18 h showed metal to superconducting transition at 80 K.

KeywordsElectrical ResistivitySuperconductorsHot PressingSintering

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Preparation and Characterization of Hot-Pressed and Sintered BiPbSrCaCuO Superconductor

Abstract

References (18)