Reconstruction of calcium silicate hydrates using multiple 2D and 3D imaging techniques: Light microscopy, μ-CT, SEM, FIB-nT combined with EDX

  • This study demonstrates the application and combination of multiple imaging techniques [light microscopy, micro-X-ray computer tomography (μ-CT), scanning electron microscopy (SEM) and focussed ion beam – nano-tomography (FIB-nT)] to the analysis of the microstructure of hydrated alite across multiple scales. However, by comparing findings with mercury intrusion porosimetry (MIP), it becomesThis study demonstrates the application and combination of multiple imaging techniques [light microscopy, micro-X-ray computer tomography (μ-CT), scanning electron microscopy (SEM) and focussed ion beam – nano-tomography (FIB-nT)] to the analysis of the microstructure of hydrated alite across multiple scales. However, by comparing findings with mercury intrusion porosimetry (MIP), it becomes obvious that the imaged 3D volumes and 2D images do not sufficiently overlap at certain scales to allow a continuous quantification of the pore size distribution (PSD). This can be overcome by improving the resolution and increasing the measured volume. Furthermore, results show that the fibrous morphology of calcium-silicate-hydrates (C-S-H) phases is preserved during FIB-nT. This is a requirement for characterisation of nano-scale porosity. Finally, it was proven that the combination of FIB-nT with energy-dispersive X-ray spectroscopy (EDX) data facilitates the phase segmentation of a 11 × 11 × 7.7 μm3 volume of hydrated alite.show moreshow less

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Document Type:Article
Author: Florian KleinerORCiDGND, Dr. rer. nat. Christiane RößlerORCiDGND, Franziska Vogt, Prof. Andrea OsburgORCiDGND, Prof. Horst-Michael LudwigGND
DOI (Cite-Link):https://doi.org/10.1111/jmi.13081Cite-Link
URN (Cite-Link):https://nbn-resolving.org/urn:nbn:de:gbv:wim2-20220106-45458Cite-Link
URL:https://onlinelibrary.wiley.com/doi/10.1111/jmi.13081
Parent Title (English):Journal of Microscopy
Publisher:John Wiley & Sons Ltd
Place of publication:Oxford
Language:English
Date of Publication (online):2021/12/26
Date of first Publication:2021/12/14
Release Date:2022/01/06
Publishing Institution:Bauhaus-Universität Weimar
Institutes and partner institutions:Fakultät Bauingenieurwesen / F. A. Finger-Institut für Baustoffkunde
Volume:2021
Pagenumber:6
First Page:1
Last Page:6
Tag:cement microstructure; focussed ion beam; micro-CT; tomography
GND Keyword:Zementklinker; Bildsegmentierung; Rasterelektronenmikroskopie; Computertomographie
Dewey Decimal Classification:000 Informatik, Informationswissenschaft, allgemeine Werke / 000 Informatik, Wissen, Systeme / 004 Datenverarbeitung; Informatik
500 Naturwissenschaften und Mathematik / 540 Chemie / 542 Techniken, Ausstattung, Materialien
BKL-Classification:30 Naturwissenschaften allgemein / 30.99 Naturwissenschaften allgemein: Sonstiges
Licence (German):License Logo Creative Commons 4.0 - Namensnennung (CC BY 4.0)