Characterization of inner structure of limestone by X-ray computed sub-micron tomography
| Autor: | Tomáš Zikmund, Dalibor Všianský, Karel Dvořák, Jozef Kaiser, Rostislav Váňa, Marek Slobodník, Jiří Dluhoš, Dominika Kalasová, Jaroslav Bureš |
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| Rok vydání: | 2018 |
| Předmět: |
Calcite
Materials science 010504 meteorology & atmospheric sciences Scanning electron microscope Energy-dispersive X-ray spectroscopy Mineralogy Building and Construction 010502 geochemistry & geophysics 01 natural sciences Focused ion beam Decrepitation Petrography chemistry.chemical_compound chemistry General Materials Science Fluid inclusions Tomography 0105 earth and related environmental sciences Civil and Structural Engineering |
| Zdroj: | Construction and Building Materials. 174:693-700 |
| ISSN: | 0950-0618 |
| Popis: | Limestones are fundamental industrial and building materials. Sparry calcite as a principal petrographic component of limestones can contain fluid inclusions. A certain amount of fluid inclusions directly influences decrepitation which plays an important role in decarbonisation processes. In this paper, a limestone with a high content of fluid inclusions and carbon was investigated. Presence of chlorine and alcalic elements was confirmed with microthermometry, mineralogical and chemical analyses. X-ray computed tomography with sub-micron resolution (CT) was applied to obtain a 3D distribution of cavities. CT data were correlated with some light microscopy images and also with the same sample’s tomography data which were gathered using the 3D X-ray energy dispersive spectroscopy (3D EDS) by a scanning electron microscope equipped with a focused ion beam (FIB-SEM). The latter further determined dolomites and metals in the CT data of limestone. |
| Databáze: | OpenAIRE |
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