Journal
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
Volume 196, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijmecsci.2021.106289
Keywords
Carbon nanotube bundle; Electric field induced aligning; Structural defects; Alignment time; Mechanical forces and stresses
Categories
Ask authors/readers for more resources
The study investigated the mechanical behaviors of CNT bundles through a 3D simulation approach and found that hydrodynamic pressure drag force plays a significant role in exerting notable stresses to the CNTs' body. The research also revealed that the utilization of strong fields can dissociate thinner bundles from the main one, destruct the structure of CNTs, and weaken their unique mechanical strength.
The alignment of carbon nanotubes (CNTs) has a superior role in the development of state-of-the-art electronic devices and advanced nanocomposites for diverse applications. In this regard, the implementation of an external electric field is one of the most promising methods in aligning CNTs. Estimation of the alignment time and mechanical loads on the CNTs' body is necessary for controlling the alignment, helping protect the CNTs' structure from the likely defects and generation of atomic disorders. Contrary to the most analytical investigations assessing the mechanical features of the alignment process through a 2D manner, we encounter the 3D phase in real-life applications. As such, herein, through a 3D simulation approach, the mechanical behaviors of CNT bundles are investigated and experimentally validated. We investigated the effect of bundle diameter and field amplitude on the alignment time and mechanical loads. This research reveals the hydrodynamic pressure drag force is the dominant player in exerting notable stresses to the CNTs' body. Furthermore, Raman spectroscopy of post-processed CNT bundles confirmed that the utilization of strong fields can dissociate the thinner bundles from the main one and destruct the structure of CNTs and weaken their unique mechanical strength.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available