Maomao Zhang, Shujin Chen, Xiaoxin Zhang, Nan Wang, Xiuzhen Lu, Ziwei Jiang, Qianlong Wang, Xiaohua Liu, Johan Liu, L. Ye
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Effect of pressure during graphitization on mechanical properties of graphene films
Graphene films (GFs) can be used in the field of electronics cooling, owing to many outstanding properties. In the present paper, GFs samples were graphitized at different pressures to study their effect on the mechanical properties. The elastic modulus and hardness of GFs were measured by nanoindentation and the tensile strength of GFs were obtained by stretching GFs in a tensile tester. Meanwhile, GFs were characterized by X-ray diffraction(XRD), Scanning electron microscopy (SEM) and Raman spectroscopy. The results show that the modulus, hardness and tensile strength of GFs were strongly influenced by the defect and wrinkles among other things.
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