Fracture surface and correlation of buckling force with aspect ratio of C60 crystalline whiskers
Fracture surface and correlation of buckling force with aspect ratio of C60 crystalline whiskers
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DOI：
10.1016/j.diamond.2007.08.005
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发表时间：
2007-11-01
影响因子：
4.1
通讯作者：
Kizuka, Tokushi
中科院分区：
文献类型：
--
作者：
Asaka, Koji;Kato, Ryoei;Kizuka, Tokushi
采用透射电子显微镜结合原子力显微镜中纳米牛顿力测量的方法，研究了平均直径为600 nm的C-60分子晶须的结构和力学性能。具有体心四边形结构的C-60纳米晶须沿其长轴被压缩。C-60纳米晶须的杨氏模量估计为28 +/- 5 GPa。屈曲应力与C-60纳米晶须的长径比有关。（100）面是C-60纳米晶须的主要断裂面。(c) 2007 Elsevier B.V.版权所有
The structure and mechanical properties of crystalline whiskers with an average diameter of 600 nm, composed of C-60 Molecules were studied by transmission electron microscopy combined with nanonewton force measurements used in atomic force microscopy. C-60 nanowhiskers with a bodycentered tetragonal structure are compressed along their long axis. Young's modulus of the C-60 nanowhiskers was estimated to be 28 +/- 5 GPa. The buckling stress was correlated to the aspect ratio of length to diameter of the C-60 nanowhiskers. The (100) surface was the principal fracture surface of the C-60 nanowhiskers. (c) 2007 Elsevier B.V. All rights reserved.