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
	2011
发表期刊	Acs Nano
ISSN	1936-0851
卷号	5 期号:9 页码:7362-7368
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.
部门归属	[tang, dai-ming; ren, cui-lan; liu, chang] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [tang, dai-ming; wei, xianlong; wang, ming-sheng; bando, yoshio; golberg, dmitri] natl inst mat sci, int ctr mat nanoarchitecton mana, tsukuba, ibaraki 3050044, japan.;liu, c (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china;cliu@imr.ac.cn golberg.dmitri@nims.go.jp
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
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WOS记录号	WOS:000295187400068
引用统计	被引频次：57[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/30697
专题	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.