Journal ArticleDOI
Effect of quenching and preparing procedure on the superconductivity, oxygen-content and microstructure of bi(pb)-2223 phase
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In this article, the effect of quenching and preparing procedure on the superconductivity, oxygen content and microstructure of Bi(Pb)-2223 phase has been investigated by means of TEM, TGA and oxygen content.Abstract:
The effect of quenching and preparing procedure on the superconductivity, oxygen content and microstructure of Bi(Pb)-2223 phase has been investigated by means of TEM, TGA and oxygen content and superconductivity measurements. The results show that Tc (0) exhibits a nonlinear change with raising quenching temperature, in the range of 100–400°C, Tc (0) unchangs approximately, in 500–600°C, Tc (0) increases slightly, at 750°C, Tc (0) exhibits a minimum value. The oxygen content is increased and the weak link behavior is improved in the samples quenched at 500–600°C and 800–820°C respectively.read more
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Journal ArticleDOI
Superconductive transition at 98.5 K in monoclinic (Bi,Pb)2Sr2CaCu2Oy.
TL;DR: The formation of this super Conductor with an unexpectedly high {Tc} value for the 2:2:1:2 phase is difficult to explain simply by consideration of the optimum carrier concentration, and it is likely correlated with the structural transformation of the superconductor.
Journal ArticleDOI
Effect of oxygen on superconductivity and structure of bi-system superconductor
C.J. Zhou,D.L. Tao,T.G. Chen +2 more
TL;DR: In this article, the effects of oxygen content and distribution in 2223 single-phase Bi 1.6 Pb 0.4 Sr 2 Ca 2 Cu 3 O 10+δ s superconductor has been carried out using a combination of quenching in air and low-temperature annealing in nitrogen.
Journal ArticleDOI
Weak links in Pb doped Bi/1bSr/1bCa/1bCu/1bO (2223) high temperature superconductor
TL;DR: Weak link behavior in single phase polycrystalline bodies of the high temperature lead substituted bismuth based 2223 superconductor has been studied on stoichiometric and non-stoichiometric compositions using magnetic susceptibility measurements as mentioned in this paper.