New graphene coating increases metal corrosion resistance by a factor of 100
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April 09 15:19:14, 2023
According to a recent report by the Physicist Organization Network, recently, Monash University in Australia and researchers at Rice University in the United States collaborated to use a graphene film that is invisible to the naked eye as a coating to enhance the corrosion resistance of copper by nearly a hundred times. Metal flood protection offers great potential. Researchers have pointed out that the use of graphene films as anti-corrosion coatings also means a paradigm shift in the development of protective coatings. Related papers were published in the September issue of Carbon. As a new material of great interest, scientists are currently developing the potential to use graphene to improve the corrosion resistance of metals. The team used a technique called "chemical vapor deposition" to attach graphene to copper at 800-900 ° C and test it in brine. “Our results are also one of the best improvements reported so far,†said co-author Manaka Magamd. “The corrosion resistance is nearly 100 times higher than that of untreated copper. Other studies may Only five or six times or more. This is a considerable leap.†Parama Benaghi, the main experimenter of the study, said that graphene has excellent mechanical properties and high strength. Polymer coatings commonly used on metals are easily scratched, reducing protection. Although the graphene coating is neither visible nor invisible in appearance, it is more resistant to damage. “I call it 'magical material'.†“In a country surrounded by oceans like Australia, it is especially important to provide special protection for the environment with atomic coatings.†Benaghi said that although the initial experiment was limited to copper, they have Experiment with other metals. The researchers pointed out that this technology has broad application prospects, from ocean-going ships to electronic products, which can greatly extend the service life of metals in any place where metal is used and there is a risk of corrosion. This also means that many industries will save huge costs. At present, the process of this technology is still in the experimental test stage. Magamd said that they not only experiment on various metals, but also how to make coatings at low temperatures, which will simplify production and increase the market potential of the products.