A new material, hundreds of times stronger than pure metals, was developed by researchers at the Korea Advanced Institute of Science and Technology (KAIST).
It is a composite nanomaterial made up of layers of nickel and copper with graphene sheets in-between. To obtain this structure, professor Seung Min Han and her team used a special process known as Chemical Vapour Deposition (CVD), which allows to deposit a single layer of graphene on the surface of the selected metal. The process was repeated several times to obtain the innovative composite material.
To measure its strength, the team performed micro-compression tests and found that the end product was much stronger than materials made of conventional metals – in particular, 500 times stronger than pure copper and 180 times stronger than pure nickel.
“What we found is amazing,” said Seung Min Han. “The strength of materials was hundreds of times higher with a rate of graphene of a mere 0.00004% of the total weight.”
This finding – continues the expert – could help launch the production of light and ultra-strong cars and space vehicles, and could also be implemented for the production of nuclear power plant coatings and of products ensuring high reliability.
The relevant study was published in the scientific review Nature Communications. Click here to read the abstract. for Columbia Engineering
The Editorial Staff
Published on Friday, September 6, 2013