Real-time deformation of carbon nanocoils under axial loading
Real-time deformation of carbon nanocoils under axial loading
复制标题
DOI：
10.1016/j.carbon.2014.11.034
复制
发表时间：
2015-03
期刊：
影响因子：
10.9
通讯作者：
Taiichiro Yonemura;Y. Suda;H. Shima;Yasushi Nakamura;H. Tanoue;H. Takikawa;H. Ue;K. Shimizu;Y. Umeda
中科院分区：
文献类型：
--
作者：
Taiichiro Yonemura;Y. Suda;H. Shima;Yasushi Nakamura;H. Tanoue;H. Takikawa;H. Ue;K. Shimizu;Y. Umeda
利用聚焦离子束(FIB)技术对9个碳纳米线圈(CNCs)进行了拉伸试验。在每个实验中，用FIB拿起一个单独的CNC，并在钨探头和弹簧台基板之间形成一座CNC桥。通过实时观察数控系统在长期拉伸下的伸长率和随后的断裂，我们能够估计每个数控系统的弹性极限、弹簧常数、剪切模数和极限强度及其平均值。CNCS的力学性能也与宏观弹簧的力学性能进行了比较。
Tensile tests were performed on nine carbon nanocoils (CNCs) using a focused-ion-beam (FIB) technique. In each experiment, an individual CNC was picked up using an FIB, and a CNC bridge formed between a tungsten probe and the spring-table substrate. Real-time observations of the CNC elongation and subsequent fracture under prolonged stretching enabled us to estimate the elastic limit, the spring constant, the shear modulus, and the ultimate strength of each CNC and their mean values. The mechanics of CNCs was also compared to that of macroscopic springs.