Buckling of C60 whiskers
Buckling of C60 whiskers
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DOI：
10.1063/1.2336590
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发表时间：
2006-08-14
影响因子：
4
通讯作者：
Kizuka, Tokushi
中科院分区：
文献类型：
--
作者：
Asaka, Koji;Kato, Ryoei;Kizuka, Tokushi
作者论证了C-60分子晶须材料的力学性质；用原位透射电子显微镜观察了晶须的压缩变形，同时用光学悬臂法测量了原子力显微镜中使用的力。在长轴受压的情况下，须先是弹性弯曲，然后弯曲。160nm直径的晶须在0.08应变下脆性断裂。根据欧拉公式，晶须的杨氏模量估计为32 ~ 54 GPa，是C-60块状晶体的160% ~ 650%。(c) 2006年美国物理研究所。
The authors demonstrated the mechanics of materials for crystalline whiskers composed of C-60 molecules; compressive deformation of the whiskers was observed by in situ transmission electron microscopy with simultaneous force measurement by means of an optical cantilever method, as used in atomic force microscopy. In response to compression along the long axis, the whiskers bent first elastically, then buckled. A whisker with 160 nm diameter fractured brittlely at a strain of 0.08. According to Euler's formula, Young's modulus of the whisker was estimated to be 32-54 GPa, which is 160%-650% of that of C-60 bulk crystals. (c) 2006 American Institute of Physics.