| 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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Johra, Hicham
Aalborg University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024Anomaly in the relation between thermal conductivity and crystallinity of silicate glass-ceramicscitations
- 2022Thermal conduction in a densified oxide glasscitations
- 2022Thermal conduction in a densified oxide glass:Insights from lattice dynamicscitations
- 2021Thermal conductivity of densified borosilicate glassescitations
- 2021Thermal, moisture and mechanical properties of Seacrete:A sustainable sea-grown building materialcitations
- 2021Thermal, moisture and mechanical properties of Seacretecitations
- 2020Principles of Energy Flexible Buildings
- 2020Heat conduction in oxide glasses: Balancing diffusons and propagons by network rigiditycitations
- 2020Heat conduction in oxide glasses: Balancing diffusons and propagons by network rigiditycitations
- 2019Boron anomaly in the thermal conductivity of lithium borate glassescitations
- 2017Influence of foaming agents on solid thermal conductivity of foam glasses prepared from CRT panel glasscitations
- 2016Influence of foaming agents on both the structure and the thermal conductivity of silicate glasses
Places of action
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conferencepaper
Influence of foaming agents on both the structure and the thermal conductivity of silicate glasses
Abstract
Foam glass is one of the most promising insulation materials for constructions since it has low thermal conductivity, high compressive strength, non-water permeability, and high fire resistance. They can be produced using cullet sources, e.g., cathode ray tubes (CRT) panel glass, and foaming agents such as metal carbonates, or oxidizing transition metal oxides combined with carbonaceous sources. In this work, we mix CRT panel glass powder with different foaming agents: CaCO3 (0-4 wt%), Fe2O3 (0-6 wt%), and MnxOy (0-10 wt%). The powder mixtures are sintered in the range between the glass transition temperature (Tg) and the foaming temperature (corresponding to the viscosity range of 1012-106 Pa s) at 10 K/min and cool down to 773 K (below Tg) at 30 K/min and naturally down to room temperature. Upon sintering, the foaming agents are partially incorporated into the glass structure. Afterwards we measure the thermal conductivity of the sintered samples with Laser Flash Technique to see its dependence on the degree of incorporation of the foaming agents into the glass structure. In parallel we prepare glass samples by adding the above-mentioned foaming agents to the CRT panel glass via high temperature (about 1500 C) melting and subsequent quenching. We compare the thermal conductivity of re-melted samples with that of the sintered samples to study the influence of the structural incorporation of the foaming agents on the thermal conductivity. The samples could crystallize during the heating process, and thereby their thermal conductivity can be influenced. The crystallinity of the samples is determined by means of X-ray diffraction. The change of the glass structure can be indirectly reflected by Tg change which is measured using a differential scanning calorimeter.