Gustavo Raskoksy / Rice University
Researchers have created monocamated amorphous carbon, which increases the resistance and duration of 2D materials and can be quite useful in the branches of electronics and sensors.
A new and innovative carbon -based material, the Monocamada amorphous carbon (MAC), is revolutionizing the field of material science by significantly increasing the resistance of 2D materials.
According to one published on the matter by researchers at Rice University, the National University of Singapore (NUS) and the Institute of Massachusetts Technology (MIT), MAC is eight times more resistant than graphenewhich makes it a promising candidate for applications in electronics, energy storage and advanced sensors, explains the.
For years, material scientists have faced the challenge of balancing strength and resistance in 2D materials. Although graphene is one of the strongest materials that are known, its fragility makes it susceptible to sudden fractures when cracking are formed. MAC, however, has a unique ability to resist the propagation of cracks, which makes it much more resistant under tension.
The secret of MAC’s greatest resistance lies in its compound structure, which integrates crystal clear and amorphous regions. Unlike the perfectly ordered hexagonal structure of the graphene, the MAC structure prevents cracks from spreading easily, allowing it absorb more energy before.
“This unique design prevents cracks from spreading easily, allowing the material Absorb more energy before leaving”Explained Bongki Shin, main author and postgraduate student in Materials Science and Nanoengineering.
To increase the resistance of 2D materials, researchers normally use two strategies: the extrinsic resistancewhich involves the addition of reinforcement nanostructures, and the intrinsic resistancewhich modifies the internal structure of the material. The MAC In-Plane Composed Structure exemplifies the last approach, demonstrating that the incorporation of ordered crystalline regions in a disordered amorphous matrix can dramatically improve fracture resistance.
The research team used advanced images and simulations to understand MAC’s unique properties. Scientists at the University of Rice performed traction tests on-site Within a microscope, which allowed them to observe the formation and propagation of cracks in real time. However, MIT researchers used molecular dynamics simulations to analyze the way MAC atomic structure influences its fracture energy.
“This had not been done before because creating and visualizing ultra -thin and disordered material on the atomic scale It’s extremely difficult”Said Yimo Han, Assistant Professor of Materials Science and Nanoengineering. “However, thanks to recent advances in the synthesis of nanomaterials and high -resolution images, we were able to find a new approach to make 2D materials more resistant without adding extra layers.”
The findings suggest that this structural approach to hardening can be applied to other 2D materials, opening new paths for the design of stronger nanomaterials with longer.
