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Enrique Juste (Belgium Ceramic Reserach Center, CRIBC-INISMa)5/18/26, 10:00 AMTotal Sintering and Dense Ceramics
Powder Bed Selective Laser Processing (PBSLP) is a promising technique for the additive manufacturing of alumina. For the method’s success, PBSLP process parameters such as laser power, scanning speed, hatching distance, and scanning strategies need to be investigated. This paper focuses on studying the scanning strategies’ effects on the PBSLP of alumina numerically and experimentally....
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Silvio Bove (Université de Paris 1 Panthéon-Sorbonne)5/18/26, 11:00 AMMathematical Homogeneization
This talk is devoted to the homogenization of elliptic problems posed in microstructured domains. After a general introduction to homogenization, I will present a brush-type geometric setting, consisting of a fixed lower part and a vertically oscillating microstructure in the upper part. I will first consider a prototype elliptic problem of Laplace type, in order to highlight the influence of...
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Matteo Capoferri (University of Milan)5/18/26, 1:30 PMPhysico-Chemical Homogeneization
The talk is concerned with the rigorous mathematical description of propagation and localisation of waves in a particular class of composite materials with random microscopic geometry, called micro-resonant (or high-contrast) random media: small inclusions of a “soft" material are randomly dispersed in a “stiff" matrix. The highly contrasting physical properties of the two constituents, ...
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Constantin Christof5/18/26, 2:00 PM
This talk is concerned with inverse homogenisation problems that
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aim to identify microstructure features of a body from macroscopic
measurements. The unknown microstructure is assumed to vary macroscopically and affects the effective tensor in an elliptic partial differential equation that governs the behaviour of the body on the macroscale. We establish the well-posedness of the... -
Julien Bruchon (Ecole des Mines de Saint-Etienne)5/18/26, 3:15 PMPhysico-Chemical Homogeneization
We propose a numerical framework to simulate the evolution of granular packings driven by surface and volume diffusion. Particle interfaces are captured using an Eulerian level-set approach, enabling a natural treatment of complex topological changes. Coupled with adaptive meshing and parallel computing, the method allows efficient large-scale simulations.
Grains are modeled as elastic,...
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Clémence Petit (Ecole des Mines de Saint-Etienne)5/19/26, 9:00 AMTotal Sintering and Dense Ceramics
Fabrication of technical ceramics involves three matin steps: synthesis of powder, shaping and sintering. This last step is generally defined as a transformation of compacted powder into a solid with progressive removal of porosity using heat [1]. The driving force of sintering is the reduction of interfaces. It can occur by densification (replacement of solid/vapour interfaces by solid/solid...
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Charles Manière (CNRS, CRISMAT (Normandie Université))5/19/26, 10:00 AMTotal Sintering and Dense Ceramics
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Aurélie Chapron (Université de Rouen Normandie)5/19/26, 11:15 AMRandom Mosaics
In this talk we introduce the Poisson-Voronoi tessellation, a classical model of random mosaic based on seeds placed randomly in the plane, each associated with a Voronoi cell, consisting of all points of the plane closer to that seed than to any other. These cells can be seen as influence zones of the seeds.
The statistical properties of these mosaics (average area, average number of...
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Emilie Falourd (Ecole des Mines de Saint-Etienne), Lucas Reding (Université Polytechnique Hauts-de-France, CERAMATHS)5/19/26, 2:00 PMPartial Sintering and Porous Ceramics
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Anthony Thuault (Université Polytechnique Hauts-de-France, CERAMATHS)Total Sintering and Dense Ceramics
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