| 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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Calvez, L.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2023Modification of free-volume defects in the GaS2-Ga2S3-CsCl glasses
- 2022Physical aging of the 62.5GeS2-12.5Sb2S3-25CsCl chalcogenide glass: Assessing the mechanisms of equilibration and crystallizationcitations
- 2022Specific trends in phosphate glass crystallizationcitations
- 2021Specific trends in phosphate glass crystallizationcitations
- 2017Optical Phenomena and Processes Induced by Ultrashort Light Pulses in Chalcogenide and Chalcohalide Glassy Semiconductors ; Оптичні явища і процеси, індуковані ультракороткими лазерними імпульсами в халькогенідних та халькогалоїдних склоподібних напівпровідниках ; Оптические явления и процессы, индуцированные ультракороткими лазерными импульсами в халькогенидных и халькогалоидных стеклообразных полупроводниках
- 2016Influence of Ag doping on physico-chemical properties of the Ge28Sb12Se60 chalcogenide glassy matrixcitations
- 2016Heat capacities of crystalline and glassy lithium metaphosphate up to the transition regioncitations
- 2010Low loss microstructured chalcogenide fibers for large non linear effects at 1995 nmcitations
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article
Specific trends in phosphate glass crystallization
Abstract
<p>This paper focusses on investigating and comparing the congruent crystallization of phosphate glasses with different degrees of polymerization. The study was performed both on powders, with different size fractions, and coarse particles which can be assimilated to bulk. From DSC experiments, corroborated by SEM analysis, it was demonstrated that LiPO<sub>3</sub> crystallizes from surface whereas LiGe<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub> crystallizes in the whole volume. Sn<sub>2</sub>P<sub>2</sub>O<sub>7</sub> presented both phenomena, the nucleation time lag being short enough to observe internal crystallization at the laboratory time scale. Using the non-isothermal Ozawa method, the kinetic parameters of the overall devitrification process were determined in terms of the Avrami exponent and of the activation energy for crystallization. The temperature of the maximum nucleation rate was calculated by using the nucleation adiabatic theory. For the achievement of this calculation, the heat capacity temperature dependence up to melting was determined from DSC experiments. The results were found in a good agreement with the SEM observation and the results of the non-isothermal crystallization study.</p>