SQUID technology applied to the study of electrochemical corrosion

Both the temporal and spatial dependences of the magnetic fields of electrochemical corrosion reactions have been investigated. A comparatively simple metal-electrolyte system, Zn in HCl, was chosen for concentrated study. Design of this corrosion cell, as well as its rationale, are described. The s...

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Bibliographic Details
Published in:IEEE transactions on magnetics 1987-03, Vol.23 (2), p.477-479
Main Authors: Bellingham, J., MacVicar, M., Nisenoff, M.
Format: Article
Language:English
Subjects:
Applied sciences
Corrosion
Costs
Current distribution
Electrodes
Exact sciences and technology
Magnetic field measurement
Magnetic fields
Magnetic materials
Monitoring
Other techniques and industries
SQUIDs
Superconducting magnets
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Summary:Both the temporal and spatial dependences of the magnetic fields of electrochemical corrosion reactions have been investigated. A comparatively simple metal-electrolyte system, Zn in HCl, was chosen for concentrated study. Design of this corrosion cell, as well as its rationale, are described. The spectral density of the magnetic field generated by corrosion reactions has an inverse dependence on frequency. The overall noise level increases with increasing corrosion rate. These preliminary results confirm the great potential of SQUID magnetometry for the study of electrochemical corrosion phenomena.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.1987.1065035