Ultrahigh Ballistic Resistance of Twisted Bilayer Graphene

Crystals

Qing Peng¹  Sheng Peng²  Qiang Cao² 

[1] Physics Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia;The Institute of Technological Sciences, Wuhan University, Wuhan 430072, China;

关键词: twisted bilayer graphene;    molecular dynamic simulations;    ballistic resistance capacity;   

DOI  :  10.3390/cryst11020206

来源: DOAJ

【 摘 要 】

Graphene is a good candidate for protective material owing to its extremely high stiffness and high strength-to-weight ratio. However, the impact performance of twisted bilayer graphene is still obscure. Herein we have investigated the ballistic resistance capacity of twisted bilayer graphene compared to that of AA-stacked bilayer graphene using molecular dynamic simulations. The energy propagation processes are identical, while the ballistic resistance capacity of the twisted bilayer graphene is almost two times larger than the AA-bilayer graphene. The enhanced capacity of the twisted bilayer graphene is assumed to be caused by the mismatch between the two sheets of graphene, which results in earlier fracture of the first graphene layer and reduces the possibility of penetration.

【 授权许可】

Unknown