| 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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Fleck, Michael
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 20233D minimum channel width distribution in a Ni-base superalloycitations
- 2022Consistent Quantification of Precipitate Shapes and Sizes in Two and Three Dimensions Using Central Momentscitations
- 2021Simulation of the θ′ precipitation process with interfacial anisotropy effects in Al-Cu alloyscitations
- 2020Phase-field modeling of ᵯE′ and ᵯE′′ precipitate size evolution during heat treatment of Ni-base superalloyscitations
- 2020On the interaction between γ′′ precipitates and dislocation microstructures in Nb containing single crystal nickel-base alloyscitations
- 2020On the interaction between ᵯE′′ precipitates and the dislocation microstructures in Nb containing single crystal nickel-base alloyscitations
- 2018Phase-Field Modeling of Precipitation Growth and Ripening During Industrial Heat Treatments in Ni-Base Superalloyscitations
- 2017Analysis of the dependence of spinodal decomposition in nanoparticles on boundary reaction rate and free energy of mixingcitations
- 2017Phase field modeling of solidification in multi-component alloys with a case study on the Inconel 718 alloycitations
- 2015Effect of Re on directional γ'-coarsening in commercial single crystal Ni-base superalloys: A phase field studycitations
Places of action
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article
Analysis of the dependence of spinodal decomposition in nanoparticles on boundary reaction rate and free energy of mixing
Abstract
The mathematical model for intercalation dynamics in phase-separating materials (Singh et al., 2008) is a powerful tool for the investigation of the spinodal decomposition in nanoparticles. By means of this model, we conduct a careful mathematical analysis of the intercalation dynamics in nanoparticles to study the dependence of spinodal gap on the boundary reaction rate and the particle size, which can be used for LiFePO4 battery material application. Consistent with previous investigations, we found that for some range of the boundary reaction rate and the particle size the concentration spinodal gap is not continuous, but it has stable ``islands'' where no spinodal decomposition is expected. The new important observation is that the presence of an infinitesimally small boundary reaction rate will destabilize nanoparticles even for infinitesimal length. In particular for nanoparticles having the size of order or less than interphase width λ , the spontaneous charge or discharge will occur at the reaction rate of order 0.1 D / λ . The further raise of the intercalation rate will stabilize the system until some size limit of order two diffusion length. The intercalation effects are proven by means of numerical simulations. We also show that the increasing enthalpy of the spinodal mixture as well as increasing elastic energy due to the lattice misfit can destabilize the particles and increase the spinodal gap.