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Small-angle neutron scattering investigation of the effect of a heat-treatment on the microstructure of porous basalt rocks

Published online by Cambridge University Press:  05 July 2018

A. Kahle ,
B. Winkler  and
A. Radulescu
A. Kahle
Affiliation:
Universität Frankfurt, Institut für Mineralogie, Abt. Kristallographie, Senckenberganlage 30, 60054 Frankfurt a.M., Germany
B. Winkler*
Affiliation:
Universität Frankfurt, Institut für Mineralogie, Abt. Kristallographie, Senckenberganlage 30, 60054 Frankfurt a.M., Germany
A. Radulescu
Affiliation:
Institut für Festkörperforschung, Forschungszentrum Jülich, 52425 Jülich, Germany
*
*E-mail: b.winkler@kristall.uni-frankfurt.de
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Abstract

Small-angle neutron scattering has been used to study the microstructure of natural porous basalt rocks. The effect of temperature on the rock microstructure has been investigated on ‘as received’ and heat-treated basalts. The magnitudes of α, the power-law scattering exponent were between 3 and 4 for the majority of the rocks, indicating a surface fractal structure between the basalt matrix and the pore space. Heat-treated basalts show higher α values, and therefore a smoother pore surface. Internal surface areas were determined for all basalts depending on the thermal history.

Keywords

neutron scatteringmicrostructureheat treatmentporous basalt
Type
Research Article
Information
Mineralogical Magazine , Volume 70 , Issue 6 , December 2006 , pp. 689 - 695
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2006

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