Search
Laser Shock Peening treatment for claustrated surfaces – ForgeLaser
The ForgeLaser project concerns breakthrough research on laser shock peening. This process consists in generating high pressure shocks (Gpa) with laser produced plasmas (ns / GW / cm2). To increase the efficiency of the interaction, it is confined by a transparent medium to laser radiation which is
Programmable metasurfaces for friction control – Prometaf
The idea is to build deterministic metasurfaces by placing model asperities, one by one, on a deformable substrate. By tuning the shape, size, altitude, bulk material and surface coating of each asperity, as well as the substrate structure, we will pilot de macroscopic behaviour of the interface to
BEHAVIOR OF INDUSTRIAL GLASSES DURING AQUEOUS DISSOLUTION – BIGDAD
Changes to European regulations (REACH, materials in contact with foodstuffs, etc.) to meet the requirements of today’s society may well have far-reaching consequences for the entire French glass industry. It has become essential to be able to demonstrate the ability of glass to retain potentially t
Image Correlation for the accurate measurement of residual stress – ICAReS
The control of the residual stress distributions is a key industrial challenge across the scales. Experimental procedures have recently emerged to emphasize the localized effects of these stresses, to observe them with digital image correlation (DIC) and finally to characterize them. In such approac
Non-linear acoustical metamaterials with dynamic wave propagation control by modification of electrical conditions – MEANDRE
The main objective of the project is to demonstrate experimentally the possibility to dynamically control elastic wave propagation and to study the related physical effects. For this, an adapted generic system must be designed, fabricated and exploited. This generic system is a piezoelectric phononi
Study in Titanium Alloys of Multiaxial Processing – STAMP
In the aim of improving the industrial forging routes for titanium components, the STAMP project is dedicated to the study of the microstructural evolution during thermomechanical treatments of Ti64 alloys. Based on the industrial Knowledge (i.e. numerical simulation of the process), the microstruct
High Temperature Titanium Alloy for Future Aeronautical Applications – ALTITUDE
Titanium alloys are particularly attractive for aeronautical applications thanks to their excellent specific mechanical resistance, their good tolerance to damage and their good resistance to corrosion. However, they only retain these properties up to 550°C. The aim of the ALTITUDE project is there
Fabrication of functional thin films by combining deep UV nanolithography and solution colloidal nanocrystals processes – DUVNANO
DUV irradiation has indeed the unique property to allow the crosslinking of nanocrystals (NCs) or nanoparticles (NPs) without any additional thermal treatment. With this process, inorganic micro-nanostructured thin films will be obtained in a single step, at room temperature, by a simple process com
Liquid metal embrittlement occurrence: phenomena and prediction – applied to the Cu-alloys/Ga-In system – GauguIn
LME concerns a priori any metal alloy in the presence of a liquid metal. In the current state of knowledge, the understanding of the phenomena which induce LME, does not make possible to predict the conditions leading to LME. The objective of GauguIn ANR is to determine a methodology on a model sys
HYDrothermal sIntering : a Low temperature process for the densIfication of Ceramics – HYDILIC
The development of high-performance ceramics is highly dependent on the sintering processes used. The challenge is to enable densification at low temperature in order to overcome current technological barriers (low-cost and energy-saving process; sintering of metastable, low decomposition temperatur
Corrosive-Oxidative coupled Mechanical Performances of materials Assessed via Advanced Characterization Tools – COMPAACT
In many industrial applications, structural materials subjected to severe environments at high temperatures (650°C – 1100°C) are prone to premature damage due to local oxidation-corrosion-assisted deformation. COMPAACT is a fundamental and experimental project proposing to tackle the influence of
Controlled Computation of Point-Defect Characteristics in High entropy Alloys – CoCoA
Due to their high number of components at high concentration and to their disordered behavior, HEAs are a challenge for numerical simulations. In particular, point defect properties in these materials are no longer single values but correspond to statistical distributions. Ideally, ab initio calcula
Synthesis and functionalization of advanced 2D transition metal carbides (MXENE): application to oxygen electroCATalysis. – MXENE-CAT
The objectives of the MXENE-CAT project are (i) the synthesis, functionalization and advanced characterization of MXenes, and (ii) their development, including composites, for applications as noble-metal free electrocatalysts for key reactions of the energy transition: hydrogen evolution, oxygen evo
Tailoring trapping defects in PERSISTent luminescence materials – PERSIST
In materials with persistent luminescence, it is possible to «store energy« in traps / defects in the material as a result of optical excitation. This energy, once the excitation is stopped, is released by a so-called persistent light emission. However, the mechanism behind the persistent luminescen
Microstructure design and machining of a beta metastable titanium alloy – DEMUTI
The optimization of machining processes has been the subject, over the last decades, of technological developments aimed at improving the machinability of titanium alloys and thus controlling the cost of machining. However, it remains perfectible for improvement, especially when metastable phases ap
MEtal GlAsses functionalization by ultrashort Laser-Induced topology and phase Transition – MEGALIT
The industrial relevance of bulk metallic glasses still suffers from detrimental weaknesses (such as insufficient toughness, limited industrial scale-up of treatment technologies and prohibitive cost) for large-scale applications. These drawbacks can be reduced by reducing their dimensionality throu
Rational improvement of the conductivity of innovative LiPON thin-films by elucidating their atomic-level structure – ThinGlass
There is an increasing demand for high-performance glass thin films (GTFs) for applications, such as microbatteries, electrochromic systems, photonics, biomaterials, or protection against corrosion. In particular, lithium phosphorus oxynitride (LiPON) GTF currently is the commercial standard electro
Interactions of Electric CUrrents and Microstructures Evolutions – ECUME
Applying an electric current to a metallic alloy is of great interest for designing improved materials. First, it allows an in situ monitoring of microstructure evolutions during heat or thermomechanical treatments. Second, it can be used to efficiently tune microstructures. However, despite the gre
Vibrations and losS In amorphous OptIcal coatiNgs – ViSIONs
Despite their ubiquity in optics, little is known about how growth conditions determine the microstructure, and thus the macroscopic properties, of dielectric thin films produced by room temperature PVD. The project aims at constructing a comprehensive answer to this problem by combining: 1) an ex
Role and use of surface-active species in fragmentation of liquid films and layers – SURFBREAK
Flows wherein liquid films or layers are fragmented occur in many industrial contexts. Enhanced or suppressed fragmentation of liquid ligaments or film rupture often largely determines efficiency, such as in controlled sprays in coating agent/pesticide delivery, combustion, cosmetics, food engineeri
Ti-based superelastic & biocompatible alloy coatings for medical devices – Super-Rev
The Super-Rev project aims at developing novel bio-functional Ni-free Ti-based coatings which will fulfil specific and practical requirements for their applicability on biomedical implantable devices in order to circumvent the allergenic and possible toxic effects of Ni ions released from the Nitino
METARoom: deep subwavelength reconfigurable acoustic treatments for room acoustics – METARoom
The extraordinary functionalities of acoustic metamaterials have led to the realization of wave manipulation techniques previously regarded as impossible with deep subwavelength structures. Unfortunately, since much of metamaterials’ properties originate from the resonance phenomenon, the novel func
FRActure Intitiation and Dynamics in SmartCut Process – Fraindy
The project aims at understanding the physics underlying the rupture of single crystal materials (namely Silicon) induced by light gas ion implantation (the “Cut” stage of the SmartCut™ technology). We will use and develop a variety of experimental techniques allowing quantitative measurements of
elecTRo-optically Actuated all-FIber Components for advanced endoscopic system – TRAFIC
Combining materials into fibers offers endless possibilities for creating devices with innovative functionalities. Complex architecture associating exotic glass compositions for nonlinear optics and metal(s) will bring decisive breakthroughs for tailoring optical and electrical wave propagation. The
Obtaining a poly-epoxy surface model and its reactivity – OPOSUM
Polymers and composites are found in all modern industrial applications, from nanomedicine to communication satellites. The knowledge of their surface is a strategic challenge. Despite a few pioneering studies, it was only recently that research has started targeting the simulation of polymer surfac
Microwave assisted recycling of strategic metals from Li-ion batteries – MiReLIB
The MiReLIB projects aims to improve the hydrometallurgy process to recycle Li-ion battery materials. This the increasing development of electric cars, chemical elements envolved in the composition of mobile energy storage devices are now becoming strategic resources and spent batteries are new urba
3D Femtosecond Laser Manufacturing of low cost integrated optical components for IR applications – FLAG-IR
FLAG-IR project is to exploit the femtosecond laser 3D direct writing technique in InfraRed (IR) glasses structuring for achieving low cost and integrated optical components for SWaP applications (reduction of Size, Weight and Power). The interaction of femtosecond laser with transparent materials i
Chemically Architectured MEtallic aLloys, towards a new strengthening mechanism – CAMEL
CAMEL: Chemically Architectured MEtallic aLloys, towards a new strengthening mechanism Keywords: Materials, mechanical properties, design of new metallic alloys. Metallic alloys are essential as structural materials for many industrial applications. For such applications, the unwanted compromi