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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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Østergaard, Martin Bonderup
Aalborg University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2024Anomaly in the relation between thermal conductivity and crystallinity of silicate glass-ceramicscitations
- 2024Suppressing the thermal conduction in glass–ceramic foams by controlling crystallizationcitations
- 2024Crystallinity dependence of thermal and mechanical properties of glass-ceramic foamscitations
- 2024A self-cleaning thermocatalytic membrane for bisphenol a abatement and fouling removalcitations
- 2023A Thermocatalytic Ceramic Membrane by Perovskite Incorporation in the Alumina Frameworkcitations
- 2023Thermocatalytic Performance of LaCo1−xNixO3−δ Perovskites in the Degradation of Rhodamine Bcitations
- 2023Beneficial effect of cerium excess on in situ grown Sr0.86Ce0.14FeO3–CeO2 thermocatalysts for the degradation of bisphenol Acitations
- 2023Beneficial effect of cerium excess on in situ grown Sr 0.86 Ce 0.14 FeO 3 –CeO 2 thermocatalysts for the degradation of bisphenol Acitations
- 2022Fracture energy of high-Poisson’s ratio oxide glassescitations
- 2021The foaming mechanism of glass foams prepared from the mixture of Mn 3 O 4 , carbon and CRT panel glasscitations
- 2021The foaming mechanism of glass foams prepared from the mixture of Mn3O4, carbon and CRT panel glasscitations
- 2021Degradation of organic micropollutants in water using a novel thermocatalytic membrane
- 2020Structure Dependence of Poisson’s Ratio in Cesium Silicate and Borate Glassescitations
- 2019Revisiting the Dependence of Poisson’s Ratio on Liquid Fragility and Atomic Packing Density in Oxide Glassescitations
- 2018Effect of alkali phosphate content on foaming of CRT panel glass using Mn3O4 and carbon as foaming agentscitations
- 2017Influence of foaming agents on solid thermal conductivity of foam glasses prepared from CRT panel glasscitations
- 2017Thermal Conductivity of Foam Glasses Prepared using High Pressure Sintering
- 2017Foaming Glass Using High Pressure Sintering
- 2016Influence of foaming agents on both the structure and the thermal conductivity of silicate glasses
Places of action
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conferencepaper
Foaming Glass Using High Pressure Sintering
Abstract
Foam glass is a high added value product which contributes to waste recycling and energy efficiency through heat insulation. The foaming can be initiated by a chemical or physical process. Chemical foaming with aid of a foaming agent is the dominant industrial process. Physical foaming has two variations. One way is by saturation of glass melts with gas. The other involves sintering of powdered glass under a high gas pressure resulting in glass pellets with high pressure bubbles entrapped. Reheating the glass pellets above the glass transition temperature under ambient pressure allows the bubbles to expand. After heat-treatment foam glass can be obtained with porosities of 80–90 %. In this study we conduct physical foaming of cathode ray tube (CRT) panel glass by sintering under high pressure (5-25 MPa) using helium, nitrogen, or argon at 640 °C (~108 Pa s). Reheating a sample in a heating microscope above maximum foaming temperature gives a suitable foaming temperature for the remaining samples. We show that the foaming kinetics depend on the type of gas and the pressure. A critical pressure of around 20 MPa is found to give the largest expansion for all gasses. Samples are obtained with 100 % closed porosity for argon and nitrogen samples (5-20 MPa) and for helium samples (5-15 MPa). The pore structure of the samples is analysed to understand the critical pressure.