In a groundbreaking discovery, researchers have unveiled a new two-dimensional (2D) carbon material that is tougher than graphene and can resist cracking under pressure—an issue that has long challenged materials scientists. While carbon-based materials like graphene are renowned for their strength, they are also notoriously brittle, with cracks quickly spreading once formed, leading to sudden and catastrophic fractures. The newly developed material, known as monolayer amorphous carbon (MAC), overcomes this weakness, proving to be eight times tougher than graphene, according to a recent study by Rice University scientists and collaborators, published in Matter.
Like graphene, MAC is a 2D material that is just one atom thick. However, its atomic structure is unique compared to graphene. While graphene features a highly ordered hexagonal lattice, MAC is a composite material with both crystalline and amorphous regions. This hybrid structure is the key to its enhanced toughness, preventing cracks from easily propagating and allowing the material to absorb more energy before breaking.
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