Graphene coatings make steel corrosion-resistant

NO LAB COAT NEEDED

[This story appeared on Materials Today (here) a couple of weeks ago]

Australian scientists have demonstrated that graphene flakes grown directly onto stainless steel makes it resistant to corrosion, drawing the attention of the coatings industry.

Hardly a day goes by without mention of another potential application for graphene. Its unique combination of properties has seen it suggested for use in batteries, electronics, filtration systems, composites and coatings. In this latest paper, a team at Deakin University grew 3D networks of graphene nanoflakes on micron-sized fibres of stainless steel, improving both the metal’s resistance to corrosion and its electrical conductivity.

Corrosion is a complex process that is linked to both environmental factors and the conditions of the metal surface (e.g. roughness, surface area and presence of oxides). And although stainless steel is more resistant to corrosion than other metals, in acidic, aqueous environments, it can be susceptible to localised…

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