In situ characterization of foam morphology during melting of simulated waste glass using x-ray computed tomography
| Autor: | Alexander C. Buchko, Jaime L. George, Richard Pokorny, Loren R. Reno, Albert A. Kruger, Steven A. Luksic, Tamas Varga, Pavel R. Hrma |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Opacity Evolved gas analysis Process Chemistry and Technology Bubble 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Characterization (materials science) Volume (thermodynamics) 0103 physical sciences Materials Chemistry Ceramics and Composites Tomography Composite material 0210 nano-technology Porosity Layer (electronics) |
| Zdroj: | Ceramics International. 46:17176-17185 |
| ISSN: | 0272-8842 |
| Popis: | During batch-to-glass conversion, a glass-forming melt connects, creating a foam layer between the batch and the glass melt. Due to its transience and opacity, investigation of this foam layer presents a formidable challenge. In this work, we use in situ x-ray computed tomography to characterize the foam morphology that evolves during batch-to-glass conversion of a simulated nuclear waste glass. Rapid 1-min scans with 38 μm voxels were performed to capture the foam structure during heating. Geometric volume, total porosity, and bubble size distribution are reported. Using evolved gas analysis and combining the temperature-dependent melt viscosity with x-ray data, we describe the evolution of foam structure during the foam growth and subsequent collapse. |
| Databáze: | OpenAIRE |
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