当前位置：
X-MOL 学术
›
ACS Appl. Mater. Interfaces
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Interfacial Mechanical Properties of Double-Layer Graphene with Consideration of the Effect of Stacking Mode
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2018-12-03 00:00:00 , DOI: 10.1021/acsami.8b18982
Wenbo Dou 1 , Chaochen Xu 1 , Jiangang Guo 1 , Hongzhi Du 1 , Wei Qiu 1 , Tao Xue 2 , Yilan Kang 1 , Qian Zhang 1
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2018-12-03 00:00:00 , DOI: 10.1021/acsami.8b18982
Wenbo Dou 1 , Chaochen Xu 1 , Jiangang Guo 1 , Hongzhi Du 1 , Wei Qiu 1 , Tao Xue 2 , Yilan Kang 1 , Qian Zhang 1
Affiliation
|
The mechanical performance and the effect of the stacking mode of the double-layer graphene interface are studied. Three kinds of double-layer graphene-PET composite structure specimens with different stacking methods are designed. By combining micro-Raman spectroscopy with a microtensile loading device, in situ and real-time measurements are carried out for the specimens during the uniaxial loading process. Based on mechanical analysis, a method for peak splitting of the Raman spectra of double-layer polycrystalline graphene is developed to extract the strain information for each layer of graphene. The strain distribution and shear stress distribution of graphene in each layer during the loading process are determined experimentally. The strain transfer between the two interfaces is analyzed, and the mechanical parameters of interfaces are given quantitatively, the interlayer shear stress of graphene is 0.084 MPa. Finally, double-layer graphene with different stacking modes is studied. The results show that the different lengths of the upper and lower layers of graphene lead to a stress concentration of 0.7–1 GPa at the boundary of the short layer of graphene when stacked. The stress concentration problem of double-layer graphene should be considered for the practical application in microelectrical components.
中文翻译：
考虑堆叠方式影响的双层石墨烯界面力学性能
研究了双层石墨烯界面的力学性能和堆积方式的影响。设计了三种堆叠方式不同的双层石墨烯-PET复合结构试样。通过将微拉曼光谱仪与微张力加载设备结合在一起，可以在单轴加载过程中对样品进行原位和实时测量。基于力学分析，提出了一种双层多晶石墨烯拉曼光谱峰分裂的方法，以提取每一层石墨烯的应变信息。实验确定了石墨烯在加载过程中每一层的应变分布和剪切应力分布。分析了两个界面之间的应变传递，定量给出了界面的力学参数，石墨烯的层间剪切应力为0.084 MPa。最后，研究了不同堆叠方式的双层石墨烯。结果表明，当堆叠时，石墨烯上层和下层的不同长度导致在石墨烯短层边界处的应力集中为0.7-1 GPa。实际应用中应考虑双层石墨烯的应力集中问题。
更新日期：2018-12-03
中文翻译：
考虑堆叠方式影响的双层石墨烯界面力学性能
研究了双层石墨烯界面的力学性能和堆积方式的影响。设计了三种堆叠方式不同的双层石墨烯-PET复合结构试样。通过将微拉曼光谱仪与微张力加载设备结合在一起，可以在单轴加载过程中对样品进行原位和实时测量。基于力学分析，提出了一种双层多晶石墨烯拉曼光谱峰分裂的方法，以提取每一层石墨烯的应变信息。实验确定了石墨烯在加载过程中每一层的应变分布和剪切应力分布。分析了两个界面之间的应变传递，定量给出了界面的力学参数，石墨烯的层间剪切应力为0.084 MPa。最后，研究了不同堆叠方式的双层石墨烯。结果表明，当堆叠时，石墨烯上层和下层的不同长度导致在石墨烯短层边界处的应力集中为0.7-1 GPa。实际应用中应考虑双层石墨烯的应力集中问题。
京公网安备 11010802027423号