Introducing a Novel Method for Computing High-Compression Pressure of Carbon Nanotubes

Research has thoroughly examined how individual carbon nanotubes and bundles behave when compressed, using various equations of state such as Murnaghan, Kholiya, and Usual-Tait. A new equation based on the third-order inverse exponential potential function was also utilized. Results showed that the Kholiya equation did not accurately explain the compression behavior of the nanotubes, while the Murnaghan and Usual-Tait equations provided better results. However, the newly developed equation of state agreed with the experimental data. These findings suggest that using more precise approximations for compression can lead to more accurate results for equations of shape at higher compression levels.