| Title: | Mechanical behavior and magnetic separation of quasi-one-dimensional SnO₂ nanostructures: A technique for achieving monosize nanobelts/nanowires |
| Author: | Jin, Z. Q. ; Ding, Yong ; Wang, Z. L. (Zhong Lin) |
| Abstract: | The as-synthesized nanowires and nanobelts usually have a large size distribution. We demonstrate here a ball milling technique for narrowing the size distribution of oxide nanobelts and nanowires. High-resolution scanning and transmission electron microscopy reveals that the one-dimensional SnO₂ nanostructures with size >150 nm are sensitive to the milling effect and most of them were fractured into nanoparticles even after a short-time milling. These nanoparticles contain magnetic Fe components, which could be effectively separated from those nanobelts by employing a magnetic field. This feature promises a potentials application in the nanostructured materials separation. It was also found that the dominant size of the survived nanostructures is <100 nm. The good mechanical behavior of the nanostructures are not only related to the superior mechanical toughness due to small size, but also related to the low defect density. |
| Description: |
©2005 American Institute of Physics. The electronic version of this article is the complete one and can be found online at: http://link.aip.org/link/?JAPIAU/97/074309/1 DOI:10.1063/1.1882774 |
| Type: | Article |
| URI: | http://hdl.handle.net/1853/27295 |
| ISSN: | 0021-8979 |
| Citation: | Journal of Applied Physics, 97 (2005) 074309 |
| Date: | 2005-03-25 |
| Contributor: |
Georgia Institute of Technology. School of Materials Science and Engineering
University of Texas at Arlington. Dept. of Physics Chinese Academy of Sciences. Institute of Physics |
| Publisher: |
Georgia Institute of Technology
American Institute of Physics |
| Subject: |
Tin compounds
Nanowires Nanostructured materials Ball milling Mechanical alloying Nanotechnology Magnetic separation Fracture Fracture toughness Bending Dislocation density Particle size Nanoparticles Transmission electron microscopy |
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