Brillouin scattering study on the single-crystal elastic properties of natrolite and analcime zeolites

DSpace/Manakin Repository

Open Research Exeter (ORE)

Brillouin scattering study on the single-crystal elastic properties of natrolite and analcime zeolites

Show simple item record

dc.contributor.author Sanchez-Valle, Carmen en_GB
dc.contributor.author Sinogeikin, Stanislav V. en_GB
dc.contributor.author Lethbridge, Zoe A. D. en_GB
dc.contributor.author Walton, Richard I. en_GB
dc.contributor.author Smith, Christopher W. en_GB
dc.contributor.author Evans, Kenneth E. en_GB
dc.contributor.author Bass, Jay D en_GB
dc.contributor.department University of Exeter; University of Illinois at Urbana-Champaign en_GB
dc.date.accessioned 2008-02-22T11:22:04Z en_GB
dc.date.accessioned 2011-01-25T10:32:26Z en_US
dc.date.accessioned 2013-03-20T12:17:27Z
dc.date.issued 2005 en_GB
dc.description.abstract The Brillouin light-scattering technique was used to investigate the single-crystal elastic properties of two aluminosilicate zeolites, natrolite (NAT) and analcime (ANA), at ambient conditions. An inversion of the acoustic velocity data results in the full set of elastic stiffness moduli (Cij's) for both materials. From the single-crystal moduli the aggregate adiabatic bulk moduli (Ks), shear moduli (G), and Poisson's ratios (v) were found to be Ks=48.5(1.0) GPa, G=31.6(1.0) GPa, and v =0.232(5) for NAT, and Ks=59.8(1.2) GPa, G=32.1(1.0) GPa, and v=0.272(5) for ANA (Voigt-Reuss-Hill averages). The bulk and shear moduli of both zeolites are relatively low compared with those of densely packed aluminosilicates, reflecting an open framework structure of (Al,SiO4) tetrahedra which is easily deformed by bending the Si–O–Al angles. As expected for a less dense crystal, NAT is softer and more compressible than ANA. An evaluation of the directional Young's moduli shows that the compressibility of NAT is nearly uniform along the [100] and [010] axes, while [001] is stiffer, in agreement with previous compression studies. We do not find experimental evidence of negative Poisson's ratios for NAT zeolites as predicted by recent theoretical calculations. en_GB
dc.identifier.citation 98 (5), pp. 053508 en_GB
dc.identifier.doi 10.1063/1.2014932 en_GB
dc.identifier.uri http://hdl.handle.net/10036/19036 en_GB
dc.language.iso en en_GB
dc.publisher American Institute of Physics en_GB
dc.relation.url http://link.aip.org/link/?jap/98/053508 en_GB
dc.subject mechanical properties en_GB
dc.subject auxetic materials en_GB
dc.subject high pressure en_GB
dc.subject diffraction en_GB
dc.subject expansion en_GB
dc.subject MFI en_GB
dc.subject zeolites en_GB
dc.title Brillouin scattering study on the single-crystal elastic properties of natrolite and analcime zeolites en_GB
dc.type Article en_GB
dc.date.available 2008-02-22T11:22:04Z en_GB
dc.date.available 2011-01-25T10:32:26Z en_US
dc.date.available 2013-03-20T12:17:27Z
dc.identifier.issn 0021-8979 en_GB
dc.description Copyright © 2005 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Journal of Applied Physics 98 (2005) and may be found at http://link.aip.org/link/?jap/98/053508 en_GB
dc.identifier.journal Journal of Applied Physics en_GB


Files in this item

Files Size Format View
brillouin scattering study.pdf 105.3Kb PDF Thumbnail

This item appears in the following Collection(s)

Show simple item record

Browse

My Account

Local Links