Electrochemical responses of Bi1.4Pb0.6Sr2Ca2Cu3O10 in various buffered halide solutions were studied. Electrochemical surface alterations in the anodic and cathodic potentials were investigated by x-ray diffraction (XRD) of the surfaces after potentiostatic exposures in the different media. The principal electrochemical reactions involved in alteration of the surface of the superconductor were identified by considering its potentiodynamic response as well as the post-exposure surface constitution. Formation and stability of bismuth (Bi) and bismuth trioxide (Bi2O3) were found to be significant in deciding the surface composition after electrochemical exposure in acetate buffer and buffers containing chloride (Cl–) and fluoride (F–). The electrochemical process was controlled by chemical reaction and diffusion in the presence of iodide (I–).
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1 June 1998
Research Article|
June 01 1998
Electrochemical Behavior of Superconducting Bi1.4Pb0.6Sr2Ca2Cu3O10 in Halide-Containing Acetate Buffer Available to Purchase
I. Chattoraj;
I. Chattoraj
*CRP Division, National Metallurgical Laboratory, Jamshedpur, 831007,
India
.
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L.C. Pathak
L.C. Pathak
**MTP Division, National Metallurgical Laboratory, Jamshedpur, 831007,
India
.
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Received:
April 01 1996
Revision Received:
May 01 1997
Online ISSN: 1938-159X
Print ISSN: 0010-9312
NACE International
1998
CORROSION (1998) 54 (6): 435–443.
Article history
Received:
April 01 1996
Revision Received:
May 01 1997
Citation
I. Chattoraj, L.C. Pathak; Electrochemical Behavior of Superconducting Bi1.4Pb0.6Sr2Ca2Cu3O10 in Halide-Containing Acetate Buffer. CORROSION 1 June 1998; 54 (6): 435–443. https://doi.org/10.5006/1.3284871
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