Plasticity-induced structural anisotropy of silica glass

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dc.creatorRountree, Cindy Linn
dc.creatorVandembroucq, Damien
dc.creatorTalamali, Mehdi
dc.creatorBouchaud, Elisabeth
dc.creatorRoux, Stéphane
dc.date2009-05-14
dc.date.accessioned2026-07-07T13:15:01Z
dc.date.available2026-07-07T13:15:01Z
dc.descriptionAmorphous silica density at ambient pressure is known to depend on thermal history (through the quenching rate) but also, at room temperature, on the maximum pressure applied in the past. Here we show that beyond density, a mechanical loading can endow the structure with an orientational order. Molecular dynamics simulations show evidence that amorphous silica develops a permanent anisotropic structure after extended shear plastic flow. This anisotropy which survives for an unstressed specimen is revealed markedly by the fabric tensor computed over the Si-O-Si orientations, albeit the SiO4 tetrahedra microstructure remains mostly unaltered.
dc.identifierhttps://arxiv.org/abs/0905.2319
dc.identifierhttp://arxiv.org/abs/0905.2319
dc.identifierPhysical Review Letters 102 (2009) 195501
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/230362
dc.subjectOther Condensed Matter
dc.titlePlasticity-induced structural anisotropy of silica glass
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