Yu MF, Kowalewski T, Ruoff RS
Department of Physics, Washington University in St. Louis, St. Louis, Missouri 63130.
Phys Rev Lett. 2001 Jan 1;86(1):87-90. doi: 10.1103/PhysRevLett.86.87.
A fully collapsed multiwalled carbon nanotube (MWCNT1) section and a different twisted and fully collapsed MWCNT were observed with tapping-mode atomic force microscopy. The collapsed section of MWCNT1 was significantly more flexible than the uncollapsed sections, and advanced 120 nm within 1 month. The collapse of MWCNT1 was most likely initiated by its interaction with the surface, and possibly a water meniscus. The ability of carbon nanotubes to radially deform under the influence of surface interactions is in striking contrast with their extremely high axial rigidity.
通过轻敲模式原子力显微镜观察到一个完全塌陷的多壁碳纳米管（MWCNT1）部分以及一个不同的扭曲且完全塌陷的多壁碳纳米管。MWCNT1的塌陷部分比未塌陷部分明显更具柔韧性，并且在1个月内前进了120纳米。MWCNT1的塌陷很可能是由其与表面的相互作用引发的，也可能是与水弯月面有关。碳纳米管在表面相互作用影响下发生径向变形的能力与其极高的轴向刚性形成了鲜明对比。
