Skip to main content

Dynamics at Surfaces : Probing the dynamics of polar and a-polar liquids at silica and vapour surfaces

Webber, J. Beau W., Strange, John H., Bland, Philip A., Anderson, Ross A., Tohidi, Bahman (2008) Dynamics at Surfaces : Probing the dynamics of polar and a-polar liquids at silica and vapour surfaces. AIP Conference Proceedings, 1081 . pp. 51-54. ISSN 0094-243X. E-ISSN 1551-7616. (doi:10.1063/1.3058545) (KAR id:13472)

PDF (Final Draft) Author's Accepted Manuscript
Language: English


Download (125kB) Preview
[thumbnail of Final Draft]
Preview
This file may not be suitable for users of assistive technology.
Request an accessible format
PDF (Published version) Publisher pdf
Language: English

Restricted to Repository staff only

[thumbnail of Published version]
Official URL
http://dx.doi.org/10.1063/1.3058545

Abstract

Recent studies by Nuclear Magnetic Resonance and Neutron Scattering of the dynamics and phase-fractions of water/ice systems in templated porous silicas (SBA-15) indicate that what was believed to be a non-frozen surface water layer is actually plastic ice, the quantity varying (continuously and reversibly) with temperature, and converting to a brittle (mainly cubic) ice at lower temperatures.

Current research relates to the study the dynamics of polar water/ice and a-polar organics at both solid and vapour interfaces. The polar results are significant for water/ice systems in the environment, where snow-packs, glaciers and icebergs are common examples of water/ice systems with extensive air/vapour interfaces.

This research also points the way forward for wide-range cryoporometric metrology in 'difficult' systems such as high iron content clays and rocks, as well as aged concrete. Results are presented for cryoporometric measurements on meteorite samples with a significant metallic content, exhibiting T2* relaxation times down to 2.5ms.

Item Type: Article
DOI/Identification number: 10.1063/1.3058545
Uncontrolled keywords: confined geometry; phase-change; Gibbs-Thomson; neutron scattering; neutron diffraction; plastic ice; NMR; NMR relaxation; cryoporometry; DSC; thermoporosimetry; porous silica; meteorite; porosity
Subjects: Q Science > QB Astronomy
Q Science > QC Physics
Divisions: Divisions > Division of Natural Sciences > Physics and Astronomy
Depositing User: J.B.W. Webber
Date Deposited: 18 Apr 2009 09:22 UTC
Last Modified: 16 Nov 2021 09:51 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/13472 (The current URI for this page, for reference purposes)
  • Depositors only (login required):