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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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article
Anomaly in the relation between thermal conductivity and crystallinity of silicate glass-ceramics
Abstract
Thermal conductivity is a key property of oxide glass, especially for building applications such as thermal insulation materials and windows or glazed facades. However, this property is difficult to be predicted since it depends on several factors such as the degree of order/disorder and porosity. Here, we report on the effects of crystallization, crystalline phase, and crystal size on the thermal conductivity of a melt-quenched silicate glass. These effects were studied by heat-treating the glass at the onset crystallization temperature for different durations to vary crystallinity in the samples. The results show a general increase in thermal conductivity with crystallinity and crystal size in the nano-range (<75 nm). The growth of devitrite and combeite phases in the glass has a great impact on the thermal conductivity. Interestingly, an anomaly of thermal conductivity is found, i.e., the thermal conductivity of the sample with a relatively low crystallinity of <15 % is reduced by >20 % compared to that of the pure glass phase. This may be attributed to the grain boundaries between amorphous and crystalline phases, which scatter the phonons and thus reduce the thermal conductivity. These results imply that nano-crystallization in window glass might be a useful way to reduce the heat loss from glazed facades in the building envelope.