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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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Bockowski, Michal
Institute of High Pressure Physics
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2024Explaining an anomalous pressure dependence of shear modulus in germanate glasses based on Reverse Monte Carlo modelling
- 2024Explaining an anomalous pressure dependence of shear modulus in germanate glasses based on Reverse Monte Carlo modelling
- 2024History matters for glass structure and mechanical properties
- 2023Evolution of the Growth Mode and Its Consequences during Bulk Crystallization of GaNcitations
- 2022Novel High-Pressure Nanocomposites for Cathode Materials in Sodium Batteriescitations
- 2022Thermal conduction in a densified oxide glasscitations
- 2022Thermal conduction in a densified oxide glass:Insights from lattice dynamicscitations
- 2021Vibrational disorder and densification-induced homogenization of local elasticity in silicate glassescitations
- 2021Thermal conductivity of densified borosilicate glassescitations
- 2021Indentation Response of Calcium Aluminoborosilicate Glasses Subjected to Humid Aging and Hot Compressioncitations
- 2021Volume relaxation in a borosilicate glass hot compressed by three different methodscitations
- 2020Composition and pressure effects on the structure, elastic properties and hardness of aluminoborosilicate glasscitations
- 2020Achieving ultrahigh crack resistance in glass through humid agingcitations
- 2020Volume relaxation in a borosilicate glass hot compressed by three different methodscitations
- 2019Luminescence behaviour of Eu 3+ in hot-compressed silicate glassescitations
- 2019Revisiting the Dependence of Poisson’s Ratio on Liquid Fragility and Atomic Packing Density in Oxide Glassescitations
- 2019(Invited) Advances in Ion Implantation of GaN and AlN
- 2018Deformation and cracking behavior of La2O3-doped oxide glasses with high Poisson's ratiocitations
- 2017Thermal Conductivity of Foam Glasses Prepared using High Pressure Sintering
- 2017Foaming Glass Using High Pressure Sintering
- 2016Structure and mechanical properties of compressed sodium aluminosilicate glassescitations
- 2014Pressure-Induced Changes in Inter-Diffusivity and Compressive Stress in Chemically Strengthened Glass
Places of action
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conferencepaper
Thermal Conductivity of Foam Glasses Prepared using High Pressure Sintering
Abstract
The increasing focus on better building insulation is important to lower energy consumption. Development of new and improved insulation materials can contribute to solving this problem. Foam glass has a good insulating effect due to its large gas volume (porosity >90 %). It can be produced with open or closed pores. If only open pores exist, air is the dominating medium for the insulating effect. However, closed pores make it possible to trap gases inside the foam. The gas can be introduced either chemically, through foaming agents, or physically, by gas compression-decompression at high temperatures. By introducing the gas physically it is possible to control composition of both the gas phase and the solid phase of the foam glass. In this work we have prepared foam glasses by physical foaming. Panel glass powder from obsolete televisions was first sintered under a gas pressure of 5-25 MPa using helium, nitrogen, or argon. The sintering result in closed-porous body with high pressure bubbles. Subsequent reheating above the glass transition temperature resulted in an expansion of the bubbles. The entrapped gas composition was analysed by gas chromatography. Furthermore, we investigated how the thermal conductivity varies with gas composition. This allows us to determine the contribution of the gas and solid phase to the total thermal conductivity of a foam glass.