In situ atomic-scale study on the ultralarge bending behaviors of TiO2-B/Anatase dual-Phase nanowires
Article
Article Title | In situ atomic-scale study on the ultralarge bending behaviors of TiO2-B/Anatase dual-Phase nanowires |
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ERA Journal ID | 1369 |
Article Category | Article |
Authors | Liu, Qiong (Author), Zhan, Haifei (Author), Zhu, Huaiyong (Author), Liu, Hongwei (Author), Sun, Ziqi (Author), Bell, John (Author), Bo, Arixin (Author) and Gu, Yuantong (Author) |
Journal Title | Nano Letters: a journal dedicated to nanoscience and nanotechnology |
Journal Citation | 19 (11), pp. 7742-7749 |
Number of Pages | 8 |
Year | 2019 |
Place of Publication | United States |
ISSN | 1530-6984 |
1530-6992 | |
Digital Object Identifier (DOI) | https://doi.org/10.1021/acs.nanolett.9b02685 |
Web Address (URL) | https://pubs.acs.org/doi/full/10.1021/acs.nanolett.9b02685 |
Abstract | It is challenging but important to understand the mechanical properties of one-dimensional (1D) nanomaterials for their design and integration into nanodevices. Generally, brittle ceramic nanowires (NWs) cannot withstand a large bending strain. Herein, in situ bending deformation of titanium dioxide (TiO2) NWs with a bronze/anatase dual-phase was carried out inside a transmission electron microscopy (TEM) system. An ultralarge bending strain up to 20.3% was observed on individual NWs. Through an in situ atomic-scale study, the large bending behavior for a dual-phase TiO2 NW was found to be related to a continuous crystalline-structure evolution including phase transition, small deformation twinning, and dislocation nucleation and movements. Additionally, no amorphization or crack occurred in the dual-phase TiO2 NW even under an ultralarge bending strain. These results revealed that an individual ceramic NW can undergo a large bending strain with rich defect activities. |
Keywords | Dual-phase TiO2 nanowire ultralarge bending strain atomic-scale defect motion phase transition |
ANZSRC Field of Research 2020 | 349999. Other chemical sciences not elsewhere classified |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Queensland University of Technology |
University of Sydney | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q5x3w/in-situ-atomic-scale-study-on-the-ultralarge-bending-behaviors-of-tio2-b-anatase-dual-phase-nanowires
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