The ultimate strength of glass silica nanowires
Brambilla, Gilberto and Payne, David N. (2009) The ultimate strength of glass silica nanowires. Nano Letters, 9, (2), 831-835. (doi:10.1021/nl803581r).
In the past decade nanowires have attracted an increase interest because of their extraordinary mechanical strength. In fact, material properties in the nanoregime are extremely different from those found in macroscopic samples: few crystalline materials have shown a tensile strength in excess of 10 GPa in the form of nanowires. Still the length of defect-free crystalline nanowires is limited to a few millimeters and the strength of long nanowires is compromised by defects. The strength of glass nanowires is less affected by single defects. In this paper we present the ultimate strength of glass silica nanowires manufactured by a top-down fabrication technique; this is the highest value reported for glass materials. The measured ultimate strength is in excess of 10 GPa and increases for decreasing nanowire diameters. Scanning electron micrographs of the broken fragments showed a fragile rupture.
|Subjects:||T Technology > TK Electrical engineering. Electronics Nuclear engineering
Q Science > QC Physics
|Divisions:||University Structure - Pre August 2011 > Optoelectronics Research Centre
|Date Deposited:||23 Mar 2009|
|Last Modified:||08 Jun 2012 12:49|
|Contributors:||Brambilla, Gilberto (Author)
Payne, David N. (Author)
|Date:||11 February 2009|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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