Mechanical Properties of Bamboo-like Boron Nitride Nanotubes by In Situ TEM and MD Simulations: Strengthening Effect of Interlocked Joint Interfaces

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	Mechanical Properties of Bamboo-like Boron Nitride Nanotubes by In Situ TEM and MD Simulations: Strengthening Effect of Interlocked Joint Interfaces
	D. M. Tang ; C. L. Ren ; X. L. Wei ; M. S. Wang ; C. Liu ; Y. Bando ; D. Golberg
刊名	Acs Nano
	2011
卷号	5 期号:9 页码:7362-7368
关键词	boron nitride nanotube interfacial geometry mechanical properties in situ TEM MD simulation multiwalled carbon nanotubes computer experiments classical fluids tensile tests composites nanocontacts nanowires resistant modulus growth
ISSN号	1936-0851
中文摘要	Understanding the influence of interfacial structures on the nanoarchitecture mechanical properties is of particular importance for its mechanical applications. Due to a small size of constituting nanostructural units and a consequently high volume ratio of such interfacial regions, this question becomes crucial for the overall mechanical performance. Boron, nitride bamboo-like nanotubes, called hereafter boron nitride nanobamboos (BNNBs), are composed of short BN nanotubular segments with specific interfaces at the bamboo-shaped joints. In this work, the mechanical properties of such structures are investigated by using direct In situ transmission electron microscopy tensile tests and molecular dynamics simulations. The mechanical properties and deformation behaviors are correlated with the interfacial structure under atomic resolution, and a geometry strengthening effect is clearly demonstrated. Due to the interlocked joint interfacial structures and compressive interfacial stresses, the deformation mechanism is switched from an interplanar sliding mode to an in-plane tensile elongation mode. As a result of such a specific geometry strengthening effect, the BNNBs show high tensile fracture strength and Young's modulus up to 8.0 and 225 GPa, respectively.
原文出处	://WOS:000295187400068
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/30697]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	D. M. Tang,C. L. Ren,X. L. Wei,et al. Mechanical Properties of Bamboo-like Boron Nitride Nanotubes by In Situ TEM and MD Simulations: Strengthening Effect of Interlocked Joint Interfaces[J]. Acs Nano,2011,5(9):7362-7368.
APA	D. M. Tang.,C. L. Ren.,X. L. Wei.,M. S. Wang.,C. Liu.,...&D. Golberg.(2011).Mechanical Properties of Bamboo-like Boron Nitride Nanotubes by In Situ TEM and MD Simulations: Strengthening Effect of Interlocked Joint Interfaces.Acs Nano,5(9),7362-7368.
MLA	D. M. Tang,et al."Mechanical Properties of Bamboo-like Boron Nitride Nanotubes by In Situ TEM and MD Simulations: Strengthening Effect of Interlocked Joint Interfaces".Acs Nano 5.9(2011):7362-7368.