| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Deubener, Joachim
Clausthal University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (26/26 displayed)
- 2024Optical Real-Time Castability Evaluation for High-Throughput Glass Melting
- 2024Non-monotonic dependence of high-temperature stability of stone wool fibres on pre-oxidation time and temperaturecitations
- 2023Viscous Sintering of Acid Leached Glass Powderscitations
- 2023Viscous Sintering of Acid Leached Glass Powders
- 2023Oxidation and coordination states assumed by transition metal dopants in an invert ultrabasic silicate glasscitations
- 2022Determination of cooling rates of glasses over four orders of magnitudecitations
- 2021Re-use potential of carbon fibre fabric recovered from infusible thermoplastic CFRPs in 2nd generation thermosetting-matrix compositescitations
- 2021Reducing the raw material usage for room temperature infusible and polymerisable thermoplastic CFRPs through reuse of recycled waste matrix materialcitations
- 2021A threshold heating rate for single-stage heat treatments in glass-ceramics containing seed formerscitations
- 2021Spray-dried sol-gel glass-ceramic powders based on the tunable thermal expansion of quartz and keatite solid solutionscitations
- 2020Water in Alkali Aluminosilicate Glassescitations
- 2020Spray-dried TiO2(B)-containing photocatalytic glass-ceramic nanobeadscitations
- 2020Inversion of quartz solid solutions at cryogenic temperaturescitations
- 2020Effect of TiO2 and 11 minor elements on the reactivity of ground‐granulated blast‐furnace slag in blended cementscitations
- 2020Automated analysis of slow crack growth in hydrous soda-lime silicate glassescitations
- 2018Kinetics of Decelerated Meltingcitations
- 2016The TTT Curves of the Heterogeneous and Homogeneous Crystallization of Lithium Disilicate - A Stochastic Approach to Crystal Nucleationcitations
- 2016Bulk elastic properties, hardness and fatigue of calcium aluminosilicate glasses in the intermediate-silica rangecitations
- 2014Influence of thermal history on micro-mechanical properties of earth-alkaline aluminosilicate glasses
- 2014Irreversibility of pressure induced boron speciation change in glass
- 2013Environmental effects on fatigue of alkaline earth aluminosilicate glass with varying fictive temperaturecitations
- 2011Towards ultrastrong glassescitations
- 2010Impact of cationic diffusion on properties of iron-bearing glass fibres
- 2009Inward Cationic Diffusion and Formation of Silica-Rich Surface Nanolayer of Glasscitations
- 2008Modification of the glass surface induced by redox reactions and internal diffusion processes
- 2004Relaxation of Anisotropic Glasses
Places of action
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article
Non-monotonic dependence of high-temperature stability of stone wool fibres on pre-oxidation time and temperature
Abstract
Stone wool is a sustainable, fire-safe insulation material, and its fire-safety depends on its high-temperature stability (HTS). It is known that the HTS of stone wool fibres can be enhanced by pre-oxidation (i.e., heat treatment in air) at temperatures below or at its glass transition temperature (T g ). However, so far, a quantitative trend of HTS with varying pre-oxidation temperature (T pre-ox ) and time (t pre-ox ) remains unknown. In this study, we quantified the change of HTS of stone wool fibres with a T g of 677 °C as functions of both T pre-ox and t pre-ox through a hot-stage microscope. The derived results revealed striking non-monotonic trends in the HTS of stone wool fibres. The HTS first increased with T pre-ox from 500 to 630 °C for t pre-ox of 15 minutes, but declined beyond 630 °C. The HTS was significantly improved upon pre-oxidation for merely 2 minutes, at 677 °C, then dropped with extending t pre-ox to 16 hours, and finally increased again with t pre-ox up to 16 days. The origin of the non-monotonic trend was explored by characterizing the crystallization behaviour, thermal expansion, surface composition, and surface morphology in stone wool fibres after pre-oxidation.