Water action on Bi-based superconductor cuprates. I. Macroscopic and morphological features

Russ, E.; Monnereau, O.; Vacquier, G.; Casalot, A.

doi:10.1016/0025-5408(96)00053-0

Cited by 1 publication

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“…The physical properties of the bismuth-based superconductors (BBSs) (Bi, Pb)-Sr-Ca-Cu-O have been extensively studied due to the great interest they have generated [1][2][3][4]. Some studies of their corrosion by atmospheric agents have also been performed [5][6][7][8][9]. The corrosion of Bi 2 Sr 2 CaCu 2 O 8 (noted Bi-2212) by air, water or dry or humid CO 2 has previously been studied [6,8,9].…”

Section: Introductionmentioning

confidence: 99%

“…Some studies of their corrosion by atmospheric agents have also been performed [5][6][7][8][9]. The corrosion of Bi 2 Sr 2 CaCu 2 O 8 (noted Bi-2212) by air, water or dry or humid CO 2 has previously been studied [6,8,9]. Bi-2212 ceramics are partially destroyed after 1 h exposure to water vapour saturated air at 60 • C. Corrosion occurs under these conditions with the formation of SrCO 3 , CaCO 3 and Bi 2 CuO 4 .…”

Section: Introductionmentioning

confidence: 99%

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Corrosion of bismuth-based superconductor wires by some atmospheric agents

Azzouz¹,

M’chirgui²,

Salem³

et al. 2000

Supercond. Sci. Technol.

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Superconducting wires (SWs) were previously prepared in our group by heat treatment of bismuth-based superconductor coatings on a metal core. This paper presents an analysis of the corrosion process by some atmospheric agents on the SWs. SWs with different concentrations of a (Bi, Pb)-2223 phase have been exposed to water vapour saturated air, to pure water vapour or to dry carbon dioxide. Each of these atmospheric agents was found to act differently on the SWs. However, all the studied corrosion processes present a high sensitivity to the concentration of the (Bi, Pb)-2223 phase. For a higher concentration of this phase, the SWs are less sensitive to atmospheric agents.

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