Please use this identifier to cite or link to this item: https://www.um.edu.mt/library/oar/handle/123456789/18452
Title: Advances in the study of the deformation mechanism of stishovite
Authors: Azzopardi, Keith M.
Brincat, Jean-Pierre
Grima, Joseph N.
Gatt, Ruben
Keywords: Deformations (Mechanics)
Silica
Diamonds (Shape)
Issue Date: 2015-07
Publisher: Wiley-VCH
Citation: Azzopardi, K. M., Brincat, J. P., Grima, J. N., & Gatt, R. (2015). Advances in the study of the deformation mechanism of stishovite. Physica Status Solidi (b), 252(7), 1486-1491.
Abstract: Stishovite, a mineral which is estimated to be abundant in the Earth's mantle, exhibits negative Poisson's ratios for a range of loading directions at specific ambient pressure ranges. Here, we investigate the deformation mechanisms which lead to auxetic behaviour in the (001) plane in further detail, and show that the two-dimensional projection of the structure is auxetic by the type α dilating rhombi mechanism. This corroborates the distorting octahedra three-dimensional mechanism described previously
URI: https://www.um.edu.mt/library/oar//handle/123456789/18452
Appears in Collections:Scholarly Works - FacSciChe
Scholarly Works - FacSciMet

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