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Friday, 20 September 2019
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Raw materials & technologies, Applications

Improvement of corrosion resistance in metal objects using nanocoatings

Monday, 4 January 2016

Iranian researchers studied the effect of application of ceramic nanocoatings on improving the corrosion resistance of metal objects.

Efforts have been made to obtain the optimum operational conditions to achieve an optimum coating. Source: INIC

Efforts have been made to obtain the optimum operational conditions to achieve an optimum coating. Source: INIC

Efforts have been made in this research to obtain the optimum operational conditions to achieve an optimum coating.

More than 20% of corrosion takes place in industrial units

Corrosion is one of the undesired reasons for performance reduction in industrial units, which decreases the effective life of units. Studies show that more than 20% of corrosion in a country takes place in industrial units related to petroleum industry. Therefore, the researchers studied the coating of ceramic nanoparticles on steel or metallic substrates and their performance. The possibility to create ceramic coating made of alumina – titania (Al2O3 – TiO2) nanoparticles on steel substrates has been studied by researchers from INIC through electrochemical method. Therefore, it was tried to study and determine effective and optimum properties in the coating process.

EPD do not require expensive equipment

Electrochemical depositions methods, including electrophoretic deposition (EPD), are quick and simple and do not require expensive equipment. These characteristics are considered significant advantages of this method in controlling the morphology of coating surface, controlling the coating rate, variety in the shape of substrate and lack of the need for glue. More homogenous coatings can be created on steel substrates by using nanotechnology and nanostructured materials, which have higher resistance against corrosion.

Taking into consideration the advantages of electrochemical method and the reasonable price of ceramic particles, it can be said that the product is cost-effective. However, further investigations are required to prove this claim.

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