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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), pp. 831-835. (doi:10.1021/nl803581r).

Record type: Article


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.

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Published date: 11 February 2009
Organisations: Optoelectronics Research Centre


Local EPrints ID: 65780
ISSN: 1530-6984
PURE UUID: bac3aee2-4b8e-4dcb-ac79-77605a786c54

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Date deposited: 23 Mar 2009
Last modified: 19 Jul 2017 00:31

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