| 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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Missiaen, Jean-Michel
Université Grenoble Alpes
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (21/21 displayed)
- 2024Additive manufacturing of aluminum Al 6061 alloy using metal injection molding granules : green density, surface roughness, and tomography study
- 2024Interface migration and grain growth in NbC-Ni cemented carbides with secondary carbide additioncitations
- 2024Additive manufacturing of aluminum Al 6061 alloy using metal injection molding granules: green density, surface roughness, and tomography study
- 2022Neutron diffraction characterizations of NbC-Ni cemented carbides thermal residual stressescitations
- 2022Sintering behavior, microstructure and mechanical properties of NbC-Ni alloys with different carbon contentscitations
- 2021Cooperative grain boundary and phase boundary migration for the grain growth in NbC-based cemented carbidescitations
- 2021Copper additive manufacturing using MIM feedstock: adjustment of printing, debinding, and sintering parameters for processing dense and defectless partscitations
- 2021Copper extrusion 3D printing using metal injection moulding feedstock: Analysis of process parameters for green density and surface roughness optimizationcitations
- 2021Shrinkage and microstructure evolution during sintering of cemented carbides with alternative binderscitations
- 2021Grain growth in sintering: a discrete element model on large packingscitations
- 2021Additive manufacturing of 17–4 PH steel using metal injection molding feedstock: Analysis of 3D extrusion printing, debinding and sinteringcitations
- 2020Sintering behavior and microstructural evolution of NbC-Ni cemented carbides with Mo2C additionscitations
- 2020Sintering behavior and microstructural evolution of NbC-Ni cemented carbides with Mo2C additionscitations
- 2019Experimental study of asymmetrical tilt boundaries in WC-Co alloyscitations
- 2019Recent Progress in the Characterisation of Cemented Carbides at the Nanoscale by TEM
- 2017EBSD study to analyse mechanisms of phase boundary and grain boundary development in WC-Co cemented carbidescitations
- 2017Investigation on the chemical reactions affecting the sinterability and oxide content of Cu–Cr composites during the solid state sintering processcitations
- 2015A New Closed-Form Model for Solid-State Sintering Kineticscitations
- 20083D statistical analysis of a copper powder sintering observed in situ by synchrotron microtomographycitations
- 20083D statistical analysis of a copper powder sintering observed in situ by synchrotron microtomographycitations
- 2001Compression and Sintering of Powder Mixtures: Experiments and Modelling
Places of action
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article
Grain growth in sintering: a discrete element model on large packings
Abstract
Sintering is a high temperature process used for ceramic or metallic powder consolidation that consists of concurrent densification and grain growth. This work presents a coupled solid-state sintering and grain growth model capable of studying large packings of particles within the Discrete Element Method (DEM) framework. The approach uses a refinement for large particle size ratios of previously established contact laws to model shrinkage. In addition, mass transfer between neighboring particles is implemented to model grain growth by surface diffusion and grain-boundary migration. The model assumptions are valid for initial and intermediate stage sintering. The model is validated on a two-particle system by comparing neck and particle size evolutions with those obtained by phase-field and meshedbased methods. Simulations on large packings (up to 400 000 particles) with particle size distributions originating from experiments are performed. The results of these simulations using physical data from the literature are compared to experimental data with good accordance of the key features of the microstructure evolution (densification kinetics, grain size-density trajectory, evolution of the mean grain size and of the size distribution). The simulations show that even at an early stage of sintering, hardly detectable grain growth actually affects the sintering kinetics to a non-negligible extent and that the realism of DEM simulations of sintering is improved when grain growth is considered. Taking advantage of the possibility to simulate large packings, the model elucidates the influence of the initial particle size distribution on the grain growth kinetics.