Scientific article

Superconducting and crystallographic properties of Bi,Pb(2212)

Published inPhysica C: Superconductivity and Its Applications, vol. 235-240, p. 943-944
Publication date1994

Superconducting Bi2−xPbxSr2CaCu2Ox (noted Bi,Pb(2212)) has been processed in air at 860°C with a nominal composition of Bi1.72Pb0.34Sr1.83Ca0.97Cu2.13Ox in contrast to the literature where this phase was produced in argon around 740°C. With the aim of transforming this phase into Bi,Pb(2223) (another Bi-containing superconductor), Bi,Pb(2212) has also been mixed with Ca2CuO3 and CuO. A critical temperature Tc of 95K was obtained for pure Bi,Pb(2212). On the basis of DTA/TG and X-ray diffraction measurements, we can conclude that pure Bi,Pb(2212) melts at 882°C. If secondary phases are added, Pb leaves the Bi,Pb(2212) crystal structure around 400°C and it is again incorporated above 835°C until the phase melts at 876°C, a temperature somewhat lower due to compositional effects.

Citation (ISO format)
JEREMIE, Andréa, GRIVEL, Jean-Claude, FLUKIGER, René-Louis. Superconducting and crystallographic properties of Bi,Pb(2212). In: Physica C: Superconductivity and Its Applications, 1994, vol. 235-240, p. 943–944. doi: 10.1016/0921-4534(94)91696-9
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Article (Published version)
ISSN of the journal0921-4534

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