Single-crystal elastic constants of the zeolite analcime measured by inelastic X-ray scattering

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Abstract

The single-crystal elastic moduli of the zeolite analcime, |Na16+(H2O)16|[Al16Si32O96] (structure type ANA), have been determined by inelastic X-ray scattering (IXS). The room temperature values (GPa) are C11 = 103.5 ± 5, C44 = 30.3 ± 2, C12 = 21.7 ± 2. The results demonstrate the applicability of this technique for measuring elastic constants of open three-dimensional structures that include extra-framework species.

Graphical abstract

Single-crystal elastic constants have been measured from large (∼1 mm) crystals of the cubic zeolite analcime, |Na16+(H2O)16|[Al16Si32O96], using inelastic X-ray scattering, demonstrating the rather isotropic elastic behaviour of this complex material.

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Acknowledgements

We thank the Engineering and Physical Sciences Research Council, UK, for funding this work, and the European Synchrotron Radiation Facility for provision of beam time. We would like to thank Arnaud Marmier of the University of Exeter for useful discussions.

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