Yu MF, Kowalewski T, Ruoff RS
Department of Physics, Washington University in St. Louis, St. Louis, Missouri 63130, USA.
Phys Rev Lett. 2000 Aug 14;85(7):1456-9. doi: 10.1103/PhysRevLett.85.1456.
Tapping-mode atomic force microscopy was used to study the radial deformability of a multiwalled carbon nanotube (MWCNT). By imaging the MWCNT under different tapping forces, we were able to demonstrate its remarkable reversible radial deformability (up to approximately 40%) and reveal internal discontinuities along its length. The values of the effective elastic modulus of several sections of the MWCNT in the radial direction were estimated with the Hertz model.
采用轻敲模式原子力显微镜研究了多壁碳纳米管（MWCNT）的径向可变形性。通过在不同轻敲力下对MWCNT成像，我们能够证明其显著的可逆径向可变形性（高达约40%），并揭示其沿长度方向的内部不连续性。利用赫兹模型估算了MWCNT几个部分在径向方向的有效弹性模量值。
