Personnel Bordeaux INP
– Maître de conférences / Groupe 4
– Publications – Citation Metrics / ORCID / ResearchGate / Scopus profil
– contact : prénom.nom-nom@icmcb.cnrs.fr / poste 2640 (ligne directe 054000+poste) (ligne directe 054000+poste / ENSCBP)
Competences : Powder metallurgy / Hot forming and additive manufacturing techniques / Design and choice of materials / X-Ray microtomography
Education and scientific position
2022- : Assistant Professor, Bordeaux INP-ENSMAC. Research in the group “Intermetallics, Metals and Composites » (leader : J-M. Heintz) at the “ Institut de Chimie de la Matière Condensée” ICMCB-CNRS, (UMR 5026, Pessac, France).
2020-2022 : Post-Doc, Laboratoire Matériaux, Ingénierie et Science (UMR 5510, Lyon, France), X. Boulnat, Study (in situ/ex situ) of the densification of biocompatible Ti alloys (Ti-6Al-4V) and Zr-based metallic glasses printed by sinter-based additive manufacturing techniques
2017-2020 : PhD in solid state chemistry and material science, Université Bordeaux1. Advisor : J-F. Silvain (ICMCB, UMR 5026) and C. Bourda (METALOR®) Fabrication de matériaux composites innovants base argent renforcés par des nanotubes de carbone par différents procédés de mise en forme.
Keywords
Fabrication additive – Additive manufacturing / Matériaux composites – Composite materials / Matériaux architecturés – Architectured materials / Métallurgie des poudres – Powder metallurgy / Microtomographie aux rayons X – X-ray microtomography / Métallurgie – Metallurgy.
Research activities
My scientific activities concern the eco-design of metallic and composite materials using artificial intelligence and additive manufacturing techniques for different applications ranging from thermomechanical to energy storage and energy harvesting applications.
More precisely, my activities focus on the sinter-based additive manufacturing (SBAM) techniques for which a feedstock, containing organics compounds and ceramics or metal particles, is extruded to form a designed 3D shape. If needed, the obtained structure can be heat treated to remove the organic compounds and to sinter the inorganic particles. Among the existing techniques, the following techniques can be cited: Fused Filament Fabrication, Direct Ink Writing or Metal Injection Molding.
The main goals of my research project are (i) to optimize the extrusion/printing of the feedstock using artificial intelligence tools and microstructural analyzes, (ii) to determine the efficient post treatments to obtain 3D structures with intended microstructures (grain size, phases, porosity) and properties (mechanical, thermal, energy, …) and (iii) to contribute to the development of improved computational models from experimental data. Main characterization techniques involved are Scanning electron Microscopy with Energy Dispersive X-Ray analysis (SEM-EDX), X-Ray computed micro-tomography, X-Ray Diffraction (XRD), dilatometry. Future works will also be devoted to the recycling of 3D printed structure. Focusing on the recovery of the inorganic particles, new powders with characteristics in accordance with the SBAM techniques would be synthesized before being 3D printed once again. Particularly, depending on the chemical and physical of the inorganic particles, appropriate techniques will be implemented to minimize the pollution.
In the group, strong cooperation with : M. Goune, S.Gorsse, J-M. Heintz, J-F. Silvain.
National Collaborations
Not yet.
International Collaborations
Not yet.
Industrial collaborations
Not yet.
Scientific production and supervision
– 3 articles published / 3 proceedings
– 8 oral presentations (author or co-author) / 2 poster presentations
Supervision : 3 Master students, 2 undergraduate students.
Teaching activities
At Bordeaux INP :
- Undergraduate students : wet chemistry (exercise and experimental class)
- Master students : inorganic chemistry (experimental class), solid thermodynamic (experimental class)
Some Relevant publications, * = corresponding author
- M. Pontoreau*, E. Le Guen, C. Bourda, et al, “Optimization of highly concentrated dispersions of multi walled carbon nanotubes with emphasis on surfactant content and carbon nanotubes quality”, Nanotechnology, vol 31, 405707 2020
- M. Pontoreau* B Thomas, E Le Guen, et al, “Synthesis of composite powders composed of silver and carbon nanotubes by liquid phase reduction method”, Nano Structures Nano Objects, vol 24, 100622 2020
- L. Constantin*, L Fan, M Pontoreau et al., “Additive manufacturing of copper diamond composites for thermal management applications”, https://doi org/10 1016/j.mfglet.2020.03.014, Manufacturing Letters, vol 24, p 61-66, 2020