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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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Tietz, Frank
Forschungszentrum Jülich
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2024Enabling High-Performance Hybrid Solid-State Batteries by Improving the Microstructure of Free-Standing LATP/LFP Composite Cathodes
- 2024Enabling High-Performance Hybrid Solid-State Batteries by Improving the Microstructure of Free-Standing LATP/LFP Composite Cathodes.citations
- 2024Phase-field determination of NaSICON materials in the quaternary system Na2O-P2O5-SiO2-ZrO2: II. Glass-ceramics and the phantom of excessive vacancy formationcitations
- 2023Kinetics and Pore Formation of the Sodium Metal Anode on NASICON‐Type Na$_{3.4}$ Zr$_2$Si$_{2.4}$P$_{0.6}$O$_{12}$ for Sodium Solid‐State Batteries
- 2023Deposition of Sodium Metal at the Copper‐NaSICON Interface for Reservoir‐Free Solid‐State Sodium Batteriescitations
- 2022Kinetics and Pore Formation of the Sodium Metal Anode on NASICON‐Type Na$_{3.4}$ Zr$_2$Si$_{2.4}$P$_{0.6}$O$_{12}$ for Sodium Solid‐State Batteriescitations
- 2020Microstructure, ionic conductivity and mechanical properties of tape-cast Li1.5Al0.5Ti1.5P3O12 electrolyte sheetscitations
- 2017A Mössbauer spectral study of degradation in La0.58Sr0.4Fe0.5Co0.5O3−x after long-term operation in solid oxide electrolysis cellscitations
- 2014Interfacial properties of (Ag + CuO) brazes used as sealing materials in SOFC stackscitations
- 2008Reducing degradation effects in SOFC stacks manufactured at Forschungszentrum Jülich - Approaches and results
- 2006Nucleation and crystal growth kinetics of glass-ceramics in the BaO-CaO-Al2O3-SiO2-B2O3 system
- 2005Overview of the development of solid oxide fuel cells at Forschungszentrum Juelich
- 2004Solid oxide fuel cell development at Forschungszentrum Juelich
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article
Microstructure, ionic conductivity and mechanical properties of tape-cast Li1.5Al0.5Ti1.5P3O12 electrolyte sheets
Abstract
<p>Free-standing Li<sub>1.5</sub>Al<sub>0.5</sub>Ti<sub>1.5</sub>P<sub>3</sub>O<sub>12</sub> electrolyte sheets with a thickness of 50–150 μm were prepared by tape casting followed by sintering at 850–1000 °C in air. While a sintering temperature of 850 °C was too low to achieve appreciable densification and grain growth, a peak relative density of 95% was obtained at 920 °C. At higher sintering temperatures, the microstructure changed from a bimodal grain size distribution towards exclusively large grains (> 10 μm), accompanied by a decrease in relative density (down to 86% at 1000 °C). In contrast, ionic conductivity increased with increasing sintering temperature, from 0.1 mS/cm at 920 °C to 0.3 mS/cm at 1000 °C. Sintering behavior was improved by adding 1.5% of amorphous silica to the slurry. In this way, almost full densification (99.8%) and an ionic conductivity of 0.2 mS/cm was achieved at 920 °C. Mechanical characterization was carried out on the almost fully densified material, yielding elastic modulus and hardness values of 109 and 8.7 GPa, respectively. The fracture strength and Weibull modulus were also characterized. The results confirm that densification and reduction of grain size improve the mechanical properties.</p>