anodic protection

anodic protection

[ə′näd·ik prə′tek·shən]
(metallurgy)
Reduction of the corrosion rate in an anode by polarizing it into a potential region where the dissolution rates low.
References in periodicals archive ?
Where pipes are exposed to media with high sulphuric acid content, such as copper mill factories, epoxy coated pipes replace the need for installation of cathodic and anodic protection systems, traditionally installed to prevent corrosion.
Anodic protection via impressed positive potentials from an external power source or from direct galvanic coupling with a noble metal (platinum-group metal) can be used during processing for out-use prevention.
However, the exact protective mechanism of conducting polymers in anticorrosive coatings is in dispute because eletroactive polymer coatings have been reported to provide both anodic protection and a barrier effect to prevent attack by a corrosive environment on steel.
The Nertec TL410 anodic protection telereader provides cathodic protection against corrosion.
New chapters include: high-temperature oxidation of metals and alloys, nanomaterials, and dental materials, anodic protection.
It was found that PANi/Ny coatings can provide an anodic protection against corrosive environments in which the metals are exposed.
4), (16) So, it can be concluded that PAni coatings on active metals like iron provide anodic protection, act as electronic, chemical, and physical barriers to inhibit anodic reaction, and maintain high resistance to ionic flow--thereby blocking the metal dissolution and providing excellent corrosion protection.
NERTEC's TL410 Anodic Protection Telereader is a telemetry-monitoring device that connects to the cathodic protection system of underground pipelines and delivers its data through public network infrastructures.