Synthesis, structural analysis and in situ transmission electron microscopy mechanical tests on individual aluminum matrix/boron nitride nanotube nanohybrids
文献类型：期刊论文
| 作者 | M. Yamaguchi ; D. M. Tang ; C. Y. Zhi ; Y. Bando ; D. Shtansky ; D. Golberg |
| 刊名 | Acta Materialia
 |
| 出版日期 | 2012 |
| 卷号 | 60期号:17页码:6213-6222 |
| 关键词 | Aluminum Boron nitride Composites Nanotubes Transmission electron microscopy (TEM) carbon nanotubes youngs modulus composites strength behavior |
| ISSN号 | 1359-6454 |
| 中文摘要 | 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. |
| 原文出处 | |
| 公开日期 | 2013-02-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/60381]  |
| 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 | 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. |
入库方式： OAI收割
来源：金属研究所
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