Structural peculiarities of in situ deformation of a multi-walled BN nanotube inside a high-resolution analytical transmission electron microscope
Structural peculiarities of in situ deformation of a multi-walled BN nanotube inside a high-resolution analytical transmission electron microscope
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DOI：
10.1016/j.actamat.2006.09.034
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发表时间：
2007-02-01
期刊：
影响因子：
9.4
通讯作者：
Bando, Y.
中科院分区：
文献类型：
--
作者：
Golberg, D.;Bai, X. D.;Bando, Y.
利用压电式扫描隧道显微镜(STM)-透射电子显微镜夹持器，在300KV高分辨率分析电子显微镜中对单个氮化硼(BN)纳米管进行了多循环弯曲变形。在变形的各个阶段，通过对纳米管的形态、原子结构、化学和电输运的详细控制，记录了变形的唯象特征。有趣的是，发现纳米管层在填充了BN物质的相对刚性的纳米管片段附近非常灵活，并且可以经受20次甚至更多的反向弯曲循环。同时，填充部分逐渐石墨化，以使垂直于BN石墨化层的垂直于纳米管轴和弯曲轴。(C)2006 Acta Materialia Inc.由爱思唯尔有限公司出版。保留所有权利。
Multi-cycle bending deformation of an individual boron nitride (BN) nanotube is performed inside a 300 kV high-resolution analytical transmission electron microscope (TEM) using a piezo-driven scanning tunneling microscope (STM)-TEM holder. Phenomenological peculiarities of the deformation are recorded under the detailed control of nanotube morphology, atomic structure, chemistry and electrical transport during all stages of deformation. Interestingly, it is found that the nanotube layers are very flexible in the vicinity of a relatively rigid nanotube fragment filled with BN matter and may withstand 20 or even more reverse bending cycles. At the same time, the filled part is gradually graphitized such that the normal to the BN graphitic layers is perpendicular to both the nanotube axis and the bending axis. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.