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Natrolite: a zeolite with negative Poisson's ratios

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Grima, Joseph N., Gatt, Ruben, Zammit, Victor A., Williams, Jennifer J., Evans, Kenneth E., Alderson, Andrew and Walton, Richard I. (2007) Natrolite: a zeolite with negative Poisson's ratios. In: 28th International Conference on the Physics of Semiconductors, Vienna, Austria, 2006. Published in: Journal of Applied Physics, Vol.101 (No.8). Article: 086102. ISSN 0021-8979. doi:10.1063/1.2718879

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Official URL: http://dx.doi.org/10.1063/1.2718879

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Abstract

The recently published experimental elastic constants [C. Sanchez-Valle, S. V. Sinogeikin, Z. A. Lethbridge, R. I. Walton, C. W. Smith, K. E. Evans, and J. D. Bass, J. Appl. Phys. 98, 053508 (2005)] for single crystals of the orthorhombic aluminosilicate zeolite NAT (natrolite, Na-2(Al2Si3O10)2H(2)O, Fdd2) throw valuable light on the potential of NAT as a material which exhibits single crystalline negative Poisson's ratios (auxetic). On performing an off-axis analysis of these elastic constants we confirm that the zeolite natrolite exhibits auxetic behavior in the (001) plane. This supports our preliminary report that NAT-type zeolites exhibit auxetic behavior through a mechanism involving microscopic rotation of semi-rigid structural units. (c) 2007 American Institute of Physics.

Item Type: Conference Item (UNSPECIFIED)
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Chemistry
Journal or Publication Title: Journal of Applied Physics
Publisher: American Institute of Physics
ISSN: 0021-8979
Official Date: 15 April 2007
Dates:
DateEvent
15 April 2007Published
Volume: Vol.101
Number: No.8
Number of Pages: 3
Page Range: Article: 086102
DOI: 10.1063/1.2718879
Status: Not Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Title of Event: 28th International Conference on the Physics of Semiconductors
Type of Event: Conference
Location of Event: Vienna, Austria
Date(s) of Event: 2006

Data sourced from Thomson Reuters' Web of Knowledge

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