Synthesis, structural analysis and in situ transmission electron microscopy mechanical tests on individual aluminum matrix/boron nitride nanotube nanohybrids

IMR OpenIR

	Synthesis, structural analysis and in situ transmission electron microscopy mechanical tests on individual aluminum matrix/boron nitride nanotube nanohybrids
	M. Yamaguchi; D. M. Tang; C. Y. Zhi; Y. Bando; D. Shtansky; D. Golberg
	2012
发表期刊	Acta Materialia
ISSN	1359-6454
卷号	60 期号:17 页码:6213-6222
摘要	Boron nitride nanotube (BNNT)/aluminum matrix composite nanohybrids were fabricated through magnetron sputtering of Al onto dispersed multiwalled BNNTs with average external diameters of 40-50 nm. Aluminum phase coating tightly wrapped the BNNTs after the deposition. The coating thickness in the range of 5-200 nm was controlled by changing sputtering time. Using imaging techniques and electron diffraction analysis in a transmission electron microscope, the Al phase was found to create nanocrystalline shields around individual BNNTs. The chemical states of the hybrid nanomaterials during the initial stages of sputtering were analyzed by X-ray photoelectron spectroscopy. Direct in situ bending and tensile tests on individual BNNT-Al nanocomposites were carried out by using a dedicated transmission electron microscope-atomic force microscope holder. In parallel, high-resolution TEM images and video recordings were taken for the analysis of deformation kinetics and fracture mechanisms. The nanohybrids with a suitably thick aluminum coating (similar to 40 nm) withstood at least nine times higher stresses compared to a pure non-armed Al metal. This pioneering work opens up a prospective pathway for making ultralight and superstrong "dream" structural materials for future automotive and aerospace applications. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
部门归属	[yamaguchi, maho; tang, dai-ming; zhi, chunyi; bando, yoshio; golberg, dmitri] natl inst mat sci nims, world premier int wpi ctr mat nanoarchitecton man, tsukuba, ibaraki 3050044, japan. [yamaguchi, maho; golberg, dmitri] univ tsukuba, grad sch pure & appl sci, tsukuba, ibaraki 3058577, japan. [tang, dai-ming] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [shtansky, dmitry] natl univ sci & technol misis, moscow 119049, russia.;golberg, d (reprint author), natl inst mat sci nims, world premier int wpi ctr mat nanoarchitecton man, namiki 1-1, tsukuba, ibaraki 3050044, japan.;golberg.dmitri@nims.go.jp
关键词	Aluminum Boron Nitride Composites Nanotubes Transmission Electron Microscopy (Tem) Carbon Nanotubes Youngs Modulus Composites Strength Behavior
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60381
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	M. Yamaguchi,D. M. Tang,C. Y. Zhi,et al. Synthesis, structural analysis and in situ transmission electron microscopy mechanical tests on individual aluminum matrix/boron nitride nanotube nanohybrids[J]. Acta Materialia,2012,60(17):6213-6222.
APA	M. Yamaguchi,D. M. Tang,C. Y. Zhi,Y. Bando,D. Shtansky,&D. Golberg.(2012).Synthesis, structural analysis and in situ transmission electron microscopy mechanical tests on individual aluminum matrix/boron nitride nanotube nanohybrids.Acta Materialia,60(17),6213-6222.
MLA	M. Yamaguchi,et al."Synthesis, structural analysis and in situ transmission electron microscopy mechanical tests on individual aluminum matrix/boron nitride nanotube nanohybrids".Acta Materialia 60.17(2012):6213-6222.