In situ observation of plaster microstructure evolution during thermal loading
| Autor: | Roux, Payraudeau‐Le, Meille, Sylvain, Chevalier, Jérome, Maire, E, Adrien, J |
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| Přispěvatelé: | Matériaux, ingénierie et science [Villeurbanne] (MATEIS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Experimental conditions
Dehydration Calcium sulfate Macroscopic shrinkage Gypsum Micro-structure evolutions Thermal load [SPI.MAT]Engineering Sciences [physics]/Materials Environmental scanning electron microscopies (ESEM) Sintering [SPI.MECA.MEMA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph] [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] Electron microscopy Imaging systems Crystal reorganization Quantitative information Scanning electron microscopy Microstructure Tomography ComputingMilieux_MISCELLANEOUS Elevated temperature |
| Zdroj: | Fire and Materials Fire and Materials, Wiley-Blackwell, 2016, 40 (7), pp.973--984 Fire and Materials, Wiley-Blackwell, 2016, 40 (7), pp.973-984. ⟨10.1002/fam.2357⟩ |
| ISSN: | 0308-0501 1099-1018 |
| DOI: | 10.1002/fam.2357⟩ |
| Popis: | cited By 1; International audience; Gypsum microstructural evolution at elevated temperatures has been characterized in situ by environmental scanning electron microscopy and high-temperature X-ray tomography. As temperature increases, the observed changes in gypsum crystal morphology are related to the consequences of water loss that leads to crystal reorganization in order to minimize the specific surface. The influence of environmental scanning electron microscopy experimental conditions on the mechanisms observed is also discussed. High-temperature X-ray tomography gives quantitative information on porosity evolution with thermal loading. The results obtained are successfully correlated with macroscopic shrinkage measurements performed during dilatometry tests. Copyright © 2016 John Wiley & Sons, Ltd. Copyright © 2016 John Wiley & Sons, Ltd. |
| Databáze: | OpenAIRE |
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