| 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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Hokka, Mikko
Tampere University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (52/52 displayed)
- 2024Dynamic shear failurecitations
- 2024Dynamic Behavior of Materials
- 2024Dynamic plasticity of metalscitations
- 2024On the use of an induced temperature gradient and full-field measurements to investigate and model the thermomechanical behaviour of an austenitic stainless steel 316citations
- 2024On the use of an induced temperature gradient and full-field measurements to investigate and model the thermomechanical behaviour of an austenitic stainless steel 316citations
- 2024Dynamic shear failure: The underlying physicscitations
- 2024In-situ synchrotron X-ray diffraction study of the effects of grain orientation on the martensitic phase transformations during tensile loading at different strain rates in metastable austenitic stainless steelcitations
- 2024In-situ synchrotron X-ray diffraction study of the effects of grain orientation on the martensitic phase transformations during tensile loading at different strain rates in metastable austenitic stainless steelcitations
- 2023Microscale Strain Localizations and Strain-Induced Martensitic Phase Transformation in Austenitic Steel 301LN at Different Strain Ratescitations
- 2023In situ damage characterization of CFRP under compression using high-speed optical, infrared and synchrotron X-ray phase-contrast imagingcitations
- 2023In situ damage characterization of CFRP under compression using high-speed optical, infrared and synchrotron X-ray phase-contrast imagingcitations
- 2023In-Situ X-ray Diffraction Analysis of Metastable Austenite Containing Steels Under Mechanical Loading at a Wide Strain Rate Rangecitations
- 2023Effects of strain rate and adiabatic heating on mechanical behavior of medium manganese Q&P steelscitations
- 2022High-speed thermal mapping and impact damage onset in CFRP and FFRP
- 2022Synchronized Full-Field Strain and Temperature Measurements of Commercially Pure Titanium under Tension at Elevated Temperatures and High Strain Ratescitations
- 2022Failure prediction for high-strain rate and out-of-plane compression of fibrous compositescitations
- 2022High-Speed Thermal Mapping and Impact Damage Onset in CFRP and FFRP
- 2022Impact damage resistance of novel adhesively bonded natural fibre composite – Steel hybrid laminatescitations
- 2022Impact damage resistance of novel adhesively bonded natural fibre composite:Steel hybrid laminatescitations
- 2022Strain Hardening and Adiabatic Heating of Stainless Steels After a Sudden Increase of Strain Ratecitations
- 2022Synchronized full-field strain and temperature measurements of commercially pure titanium under tension at elevated temperatures and high strain ratescitations
- 2022Effects of strain rate on strain-induced martensite nucleation and growth in 301LN metastable austenitic steelcitations
- 2021The Taylor–Quinney coefficients and strain hardening of commercially pure titanium, iron, copper, and tin in high rate compressioncitations
- 2021The Taylor–Quinney coefficients and strain hardening of commercially pure titanium, iron, copper, and tin in high rate compressioncitations
- 2021Adiabatic heating and damage onset in a pultruded glass fiber reinforced composite under compressive loading at different strain rates.citations
- 2021Experimental study of adhesively bonded natural fibre composite – steel hybrid laminatescitations
- 2021Some aspects of the behavior of metastable austenitic steels at high strain rates
- 2021Numerical modeling of the dynamic strain aging in steels at high strain rates and high temperaturescitations
- 2021Thermomechanical Behavior of Steels in Tension Studied with Synchronized Full-Field Deformation and Temperature Measurementscitations
- 2021Thermomechanical Behavior of Steels in Tension Studied with Synchronized Full-Field Deformation and Temperature Measurementscitations
- 2020Characterization of the anisotropic deformation of the right ventricle during open heart surgerycitations
- 2019Highly ductile amorphous oxide at room temperature and high strain ratecitations
- 2019Highly ductile amorphous oxide at room temperature and high strain ratecitations
- 2019Adiabatic Heating of Austenitic Stainless Steels at Different Strain Ratescitations
- 2019Optical, structural and luminescence properties of oxyfluoride phosphate glasses and glass-ceramics doped with Yb3+citations
- 2019Fluorine losses in Er3+oxyfluoride phosphate glasses and glass-ceramicscitations
- 2019Effects of Adiabatic Heating and Strain Rate on the Dynamic Response of a CoCrFeMnNi High‑Entropy Alloycitations
- 2019Uncoupling the effects of strain rate and adiabatic heating on strain induced martensitic phase transformations in a metastable austenitic steelcitations
- 2018Adhesion properties of novel steel –biocomposite hybrid structure
- 2018Effects of adiabatic heating estimated from tensile tests with continuous heatingcitations
- 2018An experimental and numerical study of the dynamic Brazilian disc test on a heterogeneous rock
- 2018Strain rate jump tests on an austenitic stainless steel with a modified tensile Hopkinson split barcitations
- 2018Effects of microstructure on the dynamic strain aging of ferritic pearlitic steels at high strain ratescitations
- 2018Persistent luminescent particles containing bioactive glassescitations
- 2018Luminescence of Er3+ doped oxyfluoride phosphate glasses and glass-ceramicscitations
- 2018Effects of Microstructure on the Dynamic Strain Aging in Ferritic-Pearlitic Steelscitations
- 2017Crystallization and sintering of borosilicate bioactive glasses for application in tissue engineeringcitations
- 2017High Temperature Dynamic Tension Behavior of Titanium Tested with Two Different Methodscitations
- 2017Continuum modelling of dynamic rock fracture under triaxial confinement
- 2017Wear of cemented tungsten carbide percussive drill–bit inserts : Laboratory and field studycitations
- 2015Effects of surface cracks and strain rate on the tensile behavior of Balmoral Red granite
- 2008EFFECTS OF COMPOSITION, TEMPERATURE AND STRAIN RATE ON THE MECHANICAL BEHAVIOR OF HIGH-ALLOYED MANGANESE STEELS
Places of action
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article
Luminescence of Er3+ doped oxyfluoride phosphate glasses and glass-ceramics
Abstract
<p>Glasses with the composition (75 NaPO<sub>3</sub>-(25-x) CaO-xCaF<sub>2</sub>) (in mol %) were prepared with 0.15 mol% of Er<sub>2</sub>O<sub>3.</sub> The effect of the glass composition and of heat treatment on the spectroscopic properties of the newly developed glasses is reported. With the progressive replacement of CaO by CaF<sub>2</sub>, the Er<sup>3+</sup>:<sup>4</sup>I<sub>13/2</sub> lifetime and the intensity of the upconversion emission increase whereas the intensity of the emission at 1.5 μm decreases due to the decrease in the phonon energy in the as-prepared glasses. The glasses were heat treated at 20 °C above their respective glass transition temperature for 17 h to form nuclei and then at their crystallization temperature from 15min to 1 h to grow the nuclei into crystals. The heat treatment leads to the precipitation of crystalline phases, the composition of which depends upon the glass composition. As the Er<sup>3+</sup>:<sup>4</sup>I<sub>13/2</sub> lifetime increases and the intensity of the upconversion increases for the glass with x = 0 after heat treatment, the Er<sup>3+</sup> ions are expected to be incorporated into the phosphate-based crystals. However, as the shape of the emission band at 1.5 μm remains unchanged and the intensity of the upconversion decreases significantly after heat treatment of the glasses with x > 10, the crystals found in the glass-ceramics with x > 10 are thought to free of Er<sup>3+</sup> ions. Although Er<sup>3+</sup> ions entered in the CaF<sub>2</sub> crystals precipitating in aluminosilicate glass, the Er<sup>3+</sup> ions are believed to remain in the amorphous phosphate part of the glass-ceramic containing CaF<sub>2</sub> crystals.</p>