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What temperature does graphene melt? 

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Journal ArticleDOI
Yu. D. Fomin, Vadim V. Brazhkin 
01 Feb 2020-Carbon
38 Citations
The melting temperature of graphene in argon atmosphere appears to be close to the melting temperature of graphite.
At high temperature we find that the presence of graphene slightly stabilizes the Cu surface and retards surface melting.
The highest possible temperature, close to the melting point of copper, should be used for large single crystal graphene synthesis.
The Debye temperature for graphene and twisted bilayer graphene was calculated to be around ∼1861-1864 K. Our results suggest that the thermodynamic properties of materials such as bilayer graphene can be controlled at the atomic scale by rotation of the sp(2)-carbon planes.
To the best of our knowledge, this temperature is one of the lowest used for the catalyst-free growth of graphene.
Our results represent a significant progress in reducing graphene synthesis temperature and understanding its mechanism.
The predicted thermal conductivity at room temperature exhibits important quantum effects due to the high Debye temperature of graphene.
Temperature plays a more important role in determining the fracture strength of graphene.
Increasing temperature exerts adverse and significant effects on the mechanical properties of graphene.

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