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Issue 27, 2015
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A systematic typology for negative Poisson's ratio materials and the prediction of complete auxeticity in pure silica zeolite JST

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Abstract

Single crystals can commonly have negative Poisson's ratio in a few directions; however more generalised auxeticity is rarer. We propose a typology to distinguish auxetic materials. We characterise numerous single crystals and demonstrate that partial auxeticity occurs for around 37%. We find average auxeticity to be limited to α-cristobalite and no example of complete auxeticity. We simulate two hundreds pure silica zeolites with empirical potentials and quantum chemistry methods, and for the first time identify complete auxeticity in a zeolite network, JST.

Graphical abstract: A systematic typology for negative Poisson's ratio materials and the prediction of complete auxeticity in pure silica zeolite JST

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Publication details

The article was received on 26 Feb 2015, accepted on 10 Jun 2015 and first published on 15 Jun 2015


Article type: Paper
DOI: 10.1039/C5CP01168J
Author version available: Download Author version (PDF)
Citation: Phys. Chem. Chem. Phys., 2015,17, 17927-17933
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    A systematic typology for negative Poisson's ratio materials and the prediction of complete auxeticity in pure silica zeolite JST

    M. Siddorn, F.-X. Coudert, K. E. Evans and A. Marmier, Phys. Chem. Chem. Phys., 2015, 17, 17927
    DOI: 10.1039/C5CP01168J

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