Cathodic Protection (CP) is a technique used to control the corrosion of a metal surface by making it the cathode of an electrochemical cell. A simple method of protection connects protected metal to a more easily corroded `sacrificial metal` to act as the anode. The sacrificial metal then corrodes instead of the protected metal. For structures .....
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http://en.wikipedia.org/wiki/Cathodic_protection
(from the article `metallurgy`) ...metal corrodes in water, the atoms lose electrons and become ions that move into the water. This is called an anodic reaction, and for the ... The electronegative nature of magnesium (i.e., its readiness to give up electrons) makes it useful in dry-cell batteries and as a sacrificial anode ... [4 re...
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http://www.britannica.com/eb/a-z/c/37
a means of corrosion prevention whereby electrons are supplied to the structure to be protected from an external source such as anoother more reactive metal or a dc power supply.
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http://www.chemicalglossary.net/definition/316-Cathodic_Protection
Protection of a metal (making ir a cathode) against corrosion by attaching it to a sacrifical anode of a more easily oxidized metal.
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http://www.chemistry-dictionary.com/definition/cathodic+protection.php
Cathodic protection by impressed current Credit: Northern Arizona Wind & Sun A method of preventing oxidation (rusting) of exposed metal structures, such as bridges and pipelines, by imposing between the structure and the ground a small electrical voltage that opposes the flow of electron...
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http://www.daviddarling.info/encyclopedia/C/AE_cathodic_protection.html
electrochemical immunity produced by an appropriate cathodic polarization
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http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=111-15-40
the protection of a buried metallic structure against stray currents by forcing it to behave as a cathode
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a means of corrosion prevention whereby electrons are supplied to the structure to be protected from an external source such as anoother more reactive metal or a dc power supply.
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http://www.encyclo.co.uk/local/20089
Protection of a metal (making ir a cathode) against corrosion by attaching it to a sacrifical anode of a more easily oxidized metal.
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http://www.encyclo.co.uk/local/20728
(1) Reduction of corrosion rate by shifting the corrosion potential of the electrode toward a less oxidizing potential by applying an external electromotive force. (2) Partial or complete protection of a metal from corrosion by making it a cathode, using either a galvanic or an impressed current. Contrast with anodic protection.
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http://www.encyclo.co.uk/local/20742
<chemistry> The attachment of an active metal to a system to protect the system from corrosion. The active metal serves as the anode, making the metal in the system a cathode. ... (16 Mar 1998) ...
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http://www.encyclo.co.uk/local/20973
(1) Reduction of corrosion rate by shifting the corrosion potential of the electrode toward a less oxidizing potential by applying an external electromotive force. (2) Partial or complete protection of a metal from corrosion by making it a cathode, using either a galvanic or an impressed current. Contrast with anodic protection
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http://www.encyclo.co.uk/local/21115
A method of preventing oxidation of the exposed metal in structures by imposing a small electrical voltage between the structure and the ground.
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http://www.encyclo.co.uk/local/21690
Where two metals of different electro potential are in contact in moisture, the (sacrificial) one with higher potential corrodes faster and in so doing protects the other. Galvanizing works this way.
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http://www.metalbulletin.com/Glossary.html
A technique to prevent corrosion of a metal surface by making it the cathode of an electrochemical cell.
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https://www.encyclo.co.uk/local/20094
A means of corrosion prevention whereby electrons are supplied to the structure to be protected from an external source such as another more reactive metal or a dc power supply. See also: Anodic Protection, Corrosion.
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https://www.encyclo.co.uk/local/20687
A method of preventing oxidation of the exposed metal in structures by imposing between the structure and the ground a small electrical voltage.
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https://www.encyclo.co.uk/local/22819
Reducing the corrosion of a metal by making the particular surface a cathode of an electrochemical cell.
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https://www.ssina.com/education/glossary/
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