| Publikationstyp: | Beitrag in wissenschaftlicher Zeitschrift |
| Art der Begutachtung: | Peer review (Publikation) |
| Titel: | Characterization of multi-scale microstructural features in Opalinus Clay |
| Autor/-in: | Keller, Lukas M. Schuetz, Philippe Erni, Rolf Rossell, Marta D. Lucas, Falk Gasser, Philippe Holzer, Lorenz |
| DOI: | 10.1016/j.micromeso.2012.11.029 |
| Erschienen in: | Microporous and Mesoporous Materials |
| Band(Heft): | 170 |
| Seite(n): | 83 |
| Seiten bis: | 94 |
| Erscheinungsdatum: | Apr-2013 |
| Verlag / Hrsg. Institution: | Elsevier |
| ISSN: | 1387-1811 |
| Sprache: | Englisch |
| Schlagwörter: | Map |
| Fachgebiet (DDC): | 620.11: Werkstoffe |
| Zusammenfassung: | STEM-, FIB- and X-ray tomography were applied to a sample taken from the Opalinus Clay unit. This allowed characterization of the pore structure in the fine-grained clay matrix at different levels of microstructural detail. On the level of detail that can be resolved by FIB-nt, the observed pore space is largely unconnected and the resolved porosity was in the 2-3 Vol.% range. At higher optical magnification but for smaller sample sizes, STEM tomography resolved a porosity of around 13 Vol.%. This suggests that the transition from an unconnected to a connected pore space in the shale sample occurs on the few nanometer scale. Geometric analyses of larger pores as visualized by FIB-nt revealed that dilation induced formation of bridges of only a few hundred nanometers between tips of neighboring pores may lead to a coalescence of larger pores. The resulting large pore network may allow for gas transport in the fine-grained clay matrix. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/2208 |
| Volltext Version: | Publizierte Version |
| Lizenz (gemäss Verlagsvertrag): | Lizenz gemäss Verlagsvertrag |
| Departement: | School of Engineering |
| Organisationseinheit: | Institute of Computational Physics (ICP) |
| Enthalten in den Sammlungen: | Publikationen School of Engineering |
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Keller, L. M., Schuetz, P., Erni, R., Rossell, M. D., Lucas, F., Gasser, P., & Holzer, L. (2013). Characterization of multi-scale microstructural features in Opalinus Clay. Microporous and Mesoporous Materials, 170, 83–94. https://doi.org/10.1016/j.micromeso.2012.11.029
Keller, L.M. et al. (2013) ‘Characterization of multi-scale microstructural features in Opalinus Clay’, Microporous and Mesoporous Materials, 170, pp. 83–94. Available at: https://doi.org/10.1016/j.micromeso.2012.11.029.
L. M. Keller et al., “Characterization of multi-scale microstructural features in Opalinus Clay,” Microporous and Mesoporous Materials, vol. 170, pp. 83–94, Apr. 2013, doi: 10.1016/j.micromeso.2012.11.029.
KELLER, Lukas M., Philippe SCHUETZ, Rolf ERNI, Marta D. ROSSELL, Falk LUCAS, Philippe GASSER und Lorenz HOLZER, 2013. Characterization of multi-scale microstructural features in Opalinus Clay. Microporous and Mesoporous Materials. April 2013. Bd. 170, S. 83–94. DOI 10.1016/j.micromeso.2012.11.029
Keller, Lukas M., Philippe Schuetz, Rolf Erni, Marta D. Rossell, Falk Lucas, Philippe Gasser, and Lorenz Holzer. 2013. “Characterization of Multi-Scale Microstructural Features in Opalinus Clay.” Microporous and Mesoporous Materials 170 (April): 83–94. https://doi.org/10.1016/j.micromeso.2012.11.029.
Keller, Lukas M., et al. “Characterization of Multi-Scale Microstructural Features in Opalinus Clay.” Microporous and Mesoporous Materials, vol. 170, Apr. 2013, pp. 83–94, https://doi.org/10.1016/j.micromeso.2012.11.029.
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