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Development of a SiC catalytic HEX-reactor
Reactors-heat exchangers made in silicon carbide opened the way to batch-to-continuous of difficult or dangerous renowned chemical routes. The resistance to corrosion allied to the excellent thermal conductivity of SiC make a material of choice for exothermic aggressive reactions. The CATASIC projec
Electroleaching-Electrodeposition For recovery of Precious metals from electrical / electronic equipments
Waste Electrical and Electronic Equipments (WEEE), and especially Printed Circuit Boards (PCB), represent a secondary resource rich in precious metals (PM). So-called “rich” PCB (laptops, smartphones, tablets, data centers…) contain typically 50-100 ppm of Platinum Group Metals (PGM), and 50-500 ppm
Nanocomposite copper/silver conductors for high magnetic field
The SIgMA proposal aims at designing and preparing composite nanostructured copper/silver conductors with high electrical conductivity (> 90% IACS) and high mechanical strength (> 1 GPa). The approach relies on the composite and nanostructuration effects with the unique combination of powder metal
Ordered Porous Inorganic Fluorides as efficient Heterogeneous Catalysts
The OPIFCat project aims to develop ordered porous inorganic fluorides (FIPO) as active, selective and stable catalysts under catalyzed fluorination conditions of chlorinated organic reagents using anhydrous HF as fluorination agent in the gas phase. More specifically, the objective here is to synth
3D dAta DriVEn iNvestigation of faTigUe cRack growth with ovErload effects
Reliable models are essential in all areas where cracking is a safety issue. Although structural materials are subjected to variable amplitude fatigue loading, the effect of overloads remains difficult to predict. After an overload, the relationship between the crack growth rate before overload and
High Efficiency of Massive Emitting ceRAmic for the 1.7-2.7 microns Laser winDow
The Project is part of a societal need regarding the development of 1.7-2.7 µm highly energetic compact LASER sources, which can contribute to improve the efficiency of opto-electronic devices for many applications: covering of the eye-safe spectral region, healthcare, optical communication, defense
Thin-Film coating in AIR with homogenous dielectric barrier discharge
DECAIR aims to demonstrate the scientific and technological feasibility of a roll-to-roll plasma process at atmospheric pressure in air applied to the deposition of a thin and homogeneous layer. To keep the substrate intact and to realize a homogeneous coating on a large-scale surface, we will use a
Plastic strain localization in relation with microstructure in titanium alloys
The PLASLOTI project aims at an improved understanding, as well as new prediction capabilities, of plastic deformation in titanium alloys. New insights into the effect of the microstructure will be obtained through the study of plastic localization. In particular, interactions between a/a grain boun
Study of mixed lubrication regime for compressible fluids
- Mechanisms of mixed lubrication regime - influence of tolerances and roughness on load capacity - Design of dynamic gas seals Establising of micron-sized air film for a rough interface with controlled parameters A best design of dynamic gas seals and increasing safety in turbomachinery Several a
Laser processing of tungsten interacting with helium ions
WP1: The physical mechanisms underlying the degradation of materials (e. g. blister formation or recrystallization of metals) and the change in their physico-chemical properties (e. g. trapping of species implanted in the volume or adsorption of species on the surface). The first WP will focus on th
Towards Industrialisation of Direct Liquid Injection CVD Process for Alkaline Niobate Thin Films
These developments could open new possibilities of further miniaturization and the integration of next-generation MEMS, acoustic rf filters, ferroelectronic, and nanophotonic devices (ex. for 5G applications). The fabrication of high-quality alkaline niobate films at industrial scale is hindered by
high strain RAte, TEmperature and Small-scale mechanical properties of materials
The vast majority of work on scaling effects (in the sense of mechanical properties) in metallic materials is limited to low strain rates ( < 0.01 /s) and moderate temperatures ( < 200 °C). The field of very high strain rates and high temperatures is still relatively unexplored, especially at small
role of INterstitial Solutes and diffusive Processes In the plasticity of Refractory high entropy Alloys
In this project, we aim to develop physically-based models to investigate quantitatively (i) the influence substitutional solutes on dislocation behavior and (ii) the role of interstitial solutes and the influence of their diffusion on the plastic behavior of RHEA. We will focus on refractory alloy
Advanced Modelling as a Strategy to design glass and glass-ceramic materials for Energy Storage applications
Finding innovative solutions for a more sustainable and clean energy is a priority of the global research energy agenda. To this aim, AMSES focuses on glasses (G) and glass-ceramic (GC) as innovative materials for next-generation solid-state batteries. G and GC can achieve safety, environmental sust
Experimental and numerical investigation of elastic gaps in strain gradient plasticity theories
Strain gradient plasticity theories represent a powerful alternative for modeling size effects in miniaturized structures. However, they can lead to unknown effects under certain loading conditions, such as the occurrence of elastic gaps (delay/temporary interruption in plastic flow) under certain n
Development of New Selective Materials for the Adsorption of Nitrogen Oxides
The operation chosen is the gas-solid adsorption more effective than the catalysis at low temperature. The regeneration of the process will take place in time and deported from the vehicle. The first screening of materials by molecular modeling has allowed us to extract three candidates with high po
Slow NEutron Reflection using Fluorinated nanodiamonds and graphite
The progress in neutron science is limited by the severe decrease of fluxes of slow neutrons (SNs) available. The targeted scientific breakthrough of NERF consists of the development of first ever efficient reflectors for SNs. In the present state, the mean efficiency of SN delivery to the user is l
Impact of micro- and defect structure on the catalytic performance of alternative support materials
This project between academic and industrial partners bridges the gap between fundamental and applied research. Important aspects of applied research, e.g. availability of the resources, possibility of upscaling and industrialization, long-term performance, will be included from the beginning on int
Complex Concentrated Alloys for Bio-implants: Additive Manufacturing and Properties
As the population in modern societies ages and the risks of bone diseases or bone accidents has increased, the need for a new generation of materials with superior biocompatibility and adequate mechanical properties is a challenge. CoCoA-bio combines two innovative metallurgical concepts to provide
High Entropy Alloys Passivation, Dissolution and Corrosion
High-entropy alloys (HEA) represent an emerging class of materials showing an exceptional combination of physical properties but their development is hindered by their multi-element complexity of their composition. The goal of this project is to identify the role of the individual alloy elements in
Performance and Behavior at the nanoscale of new efficient and environmentally Friendly nanolubricants
The development of new high-performance lubricants is essential in order to improve the energy efficiency of vehicles, whether they are powered by thermal or electric motors, and thus to reduce polluting emissions. In recent years, lubrication by nanoparticles has received special attention. Inert a
Nonlocal models for complex, cohesive granular flows
Granular materials (powders, grains) are ubiquitous in industrial processes but often problematic to handle as they easily agglomerate and jam : this yields excessive energy and resource demands. The processes associated to flows of these materials (as feed or product) often involve phenomena like a
META-radiative surface for atmospheric WATER harvesting
In the context of global warming and decrease of pure water resources, there is an urgent need to find new water sources. Passive condensation of atmospheric water vapor (dew) by radiative cooling is the solution that we will consider in this project. Dew water, mostly ignored until now, could serve
Improvement of the cold formability of titanium alloys
The aim of this project is to carry out a coupling of experiments and numerical simulations, allowing a better understanding and modelling of the links between microstructural evolutions and the mechanical properties of a two-phase Titanium alloy, and thus to improve the cold forming process of some
Iodine: Conditioning this Long half life Element in Alumino-borosilicate Nuclear glasses and glass-ceramics Under Pressure
The radioactive isotope 129I is a by-product of the activity of nuclear power plants, it is a long-lived and intermediate activivity waste. Until now, one method of managing 129I used in industrialized countries, including France, has been the use of isotope dilution by discharge into sea water, lea
The impact of plasticity and grain boundaries on hydrogen-induced damage in nickel base alloys
This work aims to evaluate the impact of plasticity and the nature of grain boundaries on hydrogen-induced brittle fracture mechanisms in nickel base alloys. In this context, and using innovative multiscale numerical and experimental approaches, we will interrogate in the presence of hydrogen, the i
Modelling Realistic Defects in solid-state materials with novel Optical-electronic Response
The heart of the MoRDOR project is modelling defects in newly developed optically active solids (vacancies, dopants, antisites, etc) to determine their impact on the material physical properties. Defect formation energies in different atmospheres will be determined vs. their charge states. Via advan
Lead-free Giant Electrostrictor Films
Giant electrostrictors are materials exhibiting field-induced strains several orders of magnitude larger than expect from the universal empirical relation. As a consequence they represent an opportunity to develop new sensors and actuators based on lead-free electrostrictive materials. Only four mat
Particulate Materials under Compaction
This project is dedicated to the numerical study of the compaction of particulate materials. These materials are composed of a disordered set of discrete particles that can deform elastically or plastically with or without rupture. Under compaction, they can reach high packing fraction due to partic
PolyMer-Derived nON-Oxide ceramic MEmbranes for wastewater treatment
With the growing need for clean potable water, the membrane field has become one of the most important technologies for wastewater treatment. However, numerous bottlenecks prevent conventional membranes from viable developments at fundamental and industrial levels. These bottlenecks are associated t
Multifunctional Graphene-Reinforced Ceramic-based Composites for Tribology
Controlling friction- and wear-related phenomena in mechanical systems is a critical issue for the scientific and industrial communities because it impacts their energy efficiency and therefore their ecological footprint. The development of novel materials, combining both mechanical and functional p
New functional inorganic solids by crystallisation of molten or amorphous precursors
CAPRE brings a new synthetic approach to address a fundamental problem in new inorganic materials discovery: the isolation of new metastable solids by evading the limitations of classic high-temperature ceramic reactions. It will combine aerodynamic levitation melting and high-energy milling to acce
Colored inorganic-organic hybrid Materials inspired by the Pigmentation of Sea Urchin Biominerals
Nowadays, if synthetic colorants still present a wider range of colors and are cheaper than natural colorants, they remain highly polluting. Their production based on petrochemicals and their use in the coloring industry have a huge impact on the environment and our health. Therefore, replacing poll
Crack initiation in silicate glasses – plastic flow, shear bands and damage
Silicate glasses are characterized by a remarkable combination of properties: mechanical rigidity and transparency, ease of shaping and low manufacturing costs. However, their use is often limited by a low stress at rupture, even though their intrinsic tensile strength is remarkably high. In fact, a
Functionalized bioceramics for osteoimmunomodulation and local release of active molecules
Bone defects require a surgical management involving implantation of synthetic bone substitutes associated with oral antibiotic treatment to prevent nosocomial infection. However, current results obtained with these substitutes are not sufficient and the oral administration of antibiotics cause side