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Collaborative projects

CRITT MATÉRIAUX INNOVATION is continously involved, as leader or partner, in about ten R&D or technological diffusion collaborative projects.

It’s one of its main missions, which allows resource continuously its staff, be active and recognized in European scientific nets and propose innovative solutions for its industrial customers

Our projects

Collaborative projects

CRITT MATÉRIAUX INNOVATION is continously involved, as leader or partner, in about ten R&D or technological diffusion collaborative projects.

It’s one of its main missions, which allows resource continuously its staff, be active and recognized in European scientific nets and propose innovative solutions for its industrial customers

Our projects

INTERREG Va Alt Ctrl Trans

Project INTERREG Va Alt Ctrl Trans

Project leader :

Partners :

Program co-funded by :

With the support of the European Regional Development Fund

Hard chrome plating technology increases the wear resistance of steel parts. However, hexavalent chromium is carcinogenic and harmful to the environment. So, since September 2017, it has been banned. Therefore, for several decades, research has focused on the development of alternative surface treatments to it. However, the available alternative solutions do not match the specifications of the industry or are incompatible with certain applications. In order to meet the requirements of the field, the focus is on the development of second generation alternatives based on classical technologies, compatible with current installations:
  • Development of nickel-boron coating, free of heavy metal
  • Development of technologies based on trivalent chromium baths (no toxic) with improved properties according with exiting coatings
  • Improve the coating method by Plasma Transferred Arc (PTA)
  •   Technologies, based on the partners’s knowledge and prior developments are complementary and allow to cover a large applications field. Project Alt Ctrl Trans propose to develop and promote the implementation, on a pilot scale, of one or several alternatives to hard chrome platin (and to current methods by trivalent chromium) based on metallic coatings, for transport and metal transformation sectors.
    Regional project MATREX 2

    Regional project MATREX 2

    Project leader :

    Partners :

    Program co-funded by :

    With the support of the European Regional Development Fund

    MATREX project allowed us to highlight interesting performances of some materials which could be alternative to make shaping tools, in particular for glass moulds and forging tools, as well as wearing parts for energy sector

    The tests serials done with different technologies or methods was crossed and this allowed to select materials or material elaboration methods hopeful. Details of these selectionned methods and materials will be available in the conclusions of the MATREX project.

    Throught the MATREX project and the feed-back from glass, forging, casting and energy professionals, two major issues emerge:

    Tools lubrication is a main step for preservation and lifetime of them. Nevertheless, this lubrication step is sometime the origin of bad consequences for environment and industry.

    Indeed, presence of some lubricant’s components is less and less wished in the industry due to their relative harmfulness for environment. So, moulds’s cleaning and maintenance to remove lubricant’s residues are quite contrainsting.

    For this reason, many manufacturers have the long-term objective of reducing or even eliminating the use of lubricants during the glass shaping stage.

    Considerations about request for change some lubricants’s composition, according with the REACH regulation, are often done by industry. However, modification  of structure or composition’s lubricant have consequences for their performance.

    Add to these consideration, there is for industry, the issue of the real-time monitoring for their tools’s damage, for optimize the finish products flow and avoid scraps, and the wish to find efficient means for moulds’s cleaning/stripping.

    There is also a desire to make available for hot toolings’s professionals, diagnostic tools allowing predict the lifetime of their materials.

    Wearing parts for high temperature or high energy (refractories, ceramics…) have similar issues than glasses’s moulds or forging tools. The relative empiricism for define and calculate shaping grades and material optimization (shape, design) leads to reducing lifetime of parts and tools, so maintenance costs and random reproductibility. Moreover, valorization and recycling issues are often overlooked, or not taken into account. It is certain that with the notion of assembling several materials, this point becomes a key factor in the success of the choice of this or that material (metallic, ceramic, composite, …).

    It’s in this context that this research project is implemented. To deal with these issues, the initial consortium of MATREX project, with an additional partner, will try to bring solution’s proposals and working methodologies transferable at the industrial scale, at the end of this new project MATREX 2.

    INTERREG Va FabricAr3v

    INTERREG Va project Fabricar3v

    Project leader :

    Partners :

    Program co-funded by :

    With the support of the European Regional Development Fund

    Towards additive manufacturing for everyone.

     

    Additive manufacturing is a high increasing sector, but current technologies request a great deal of expertise and investment in the range of one million euros.

     

    New technologies based on MIM (Metal Injection Molding) process allow coming for 10 times cheaper devices.

     

    The Fabricar3v project aims to develop a process for a global investment under 30 k€. This development should allow make it accessible for SME and fablabs.

     

    This project brings together transversal and cross-border partners to develop and validate a “low-cost” process and propose dedicated simulation tools.

    MICA CARNOT Institute’s project OPTIMOS

    MICA CARNOT Institute’s project OPTIMOS

    Project leaders :

    Partner :

    Program co-funded by :

    Presently, patients affected by trauma to bone tissue have to deal with the difficulties inherent in the reconstruction of this biological tissue, leading to often long and costly hospital stays. Therefore, rapid and efficient bone regeneration is an essential parameter which should be considere to give back patients autonomy and mobility, particularly by restoring their ability to walk. In the world, there are yearly 2.2 millions surgical interventions regarding bone areas. More than 25 000 synthetic bone substitutes was implanted in France in 2011 (plus 8% according to 2010) for 6 millions €.

    In this context, a previous project (BiomateriOs), allowed us to get porous and biocompatible structures, composed of commercial hydroxyapatite. By using of ceramics and/or bioactive glasses, osteo-conductive/inductive, these structures optimized for bone regeneration present a double porosity and a monitored solubility, to avoid the recourse to autograft, thus limiting pain and increased morbidity for the patient.


    This new project OptimOs follow the same philosophy and target to optimize the structure made composition, for access to news biological properties, by using different calcium phosphate phases and/or ionic substitution. Focus will also be placed on the finish product shaping as divisible blocks or able to be assembled in three dimensions. This will allow to practitioner to nearest adapts the geometry of the area to be filled, while having choice to use materials adapted for certains conditions as inflammatory or potentially infected areas.

    Mainly properties of porous and biocompatible ceramic structures.

    Hydroxyapatite + bio-glass sintered block, made in the BiomateriOs project frame.

    Principales propriétés des structures poreuses et biocompatibles en céramique.

    Bloc fritté d’hydroxyapatite + bioverre obtenu dans le cadre du projet BiomateriOs.

    INTERREG Va PEPS

    INTERREG Va project PEPS

    Project leader :

    Partners :

    Program co-funded by :

    With the support of the European Regional Development Fund

    The target is to implement a creative approach, to develop the potential of our industrial landscape, through additive manufacturing processes for technical polymerics and/or filled polymerics. Our main ambition is to enlarge the potential of additive manufacturing processes, confined to prototyping, to direct it to new industrial applications, as direct making with optimized mechanical properties near than those get by polymer transformation serials processes. Indeed, the original idea is to increase the panel of usable materials with the additive manufacturing processes, while giving them innovative functionalizations. How ?
  • Develop different additive manufacturing axes, according with the industrial requests (for example: functionalization, structure lightening, fillers incorporation…),
  • Quantify the thermoplastics mechanical properties according with the kind of 3D printing process,
  • Raise awareness and valorize the PEPS research results, through workshops and demonstrators realization.
    Regional project PRACORMAT 2

    Regional project PRACORMAT 2

    Project leader :

    Partners :

    Program co-funded by :

    With the support of the European Regional Development Fund

    The target of the collaborative project PRACORMat-II is to collectively develop innovative and efficient technologic solutions of surface functionalization, to propose them, in later phase, for partners’s industrial network. These solutions focus, more finely, the issues already addressed in the previous project PACORMat (part conductive surfaces development by sustainable metallization of di-electricals materials for energy, transport, connectics, luxe markets) but not only.

    They are extended to the surface of biocompatible materials issues, in particular those of medical devices (antimicrobial, bioactive).

     Other target is to build a mix team with Grand-Est CRTs, multi-expert specialized in complementary fields of Surfaces & Interfaces, where each CRT brings its technological part and its own expertise for the targeted surface functionalization.

    Explanatory scheme

    SMILE project (self-funded project)

    SMILE project (self-funded project)

    Project leader :

    Partner :

    More than than 40 000 knee prostheses are yearly implanted in France.

    Numerous technologic improvements performed from 1970 has allowed to reach a high survival rate for joint prostheses. Nevertheless, some issues stays. Aseptic loosening are the most frequent and correspond to 60% of the recovery operations. There are mainly due to the wear debris generated by the rubbing between the joint implant component parts. The most of the knee prostheses is consisted of a metal/polyethylene material pair. In which case, the mainly issue is the polymer component weariness. Migration of this debris into the peri-prosthetic space causes an inflammatory reaction leading to osteolysis (bone destruction) with loosening implant risk. Thus, the weariness resistance improvement stays a major challenge for prosthetic components involved in joints replacement.

    Treatments as polymer parts cross-linking allow to improve the prostheses wear resistance. Others treatments as SMAT (Surface Mechanical Attrition Treatment), a surface nano-crystallization treatment of materials, is used on metallic materials for improve their wear resistance. This topic was the subject of the NanoTribo project lead by CRITT MATÉRIAUX INNOVATION with the UTT (Troyes technologic university) and URCA (Reims Champagne-Ardenne university) collaboration, which proved a significant improvement of the wear resistance of the SMATed cobalt-chromium-molybdenum alloys.

     
    INTERREG Va TEXTOS

    INTERREG Va project TEXTOS

    Project leader :

    Partners :

    Program co-funded by :

    With the support of the European Regional Development Fund

    The TEXTOS project’s general target is to develop an innovative 3D matrix for tissue engineering, as purpose to rebuild, regenerate or replace the function of deficient tissues or organs. This matrix will constitute a growth support composed of natural agrosourced polymers. The originality of this project lies in the preparation of a sterilized, bi-component, biocompatible and porous support, get by a knitting process and ready to use. This material will be constituted of poly(lactic-co-glycolicacid) (PLGA) as substrate (insuring mechanical function) and chitosan as surface coating (for bio functionalization).

    Challenges of this project are multiple. First, a scientific and technic challenge, purposed the making of an innovative product, at the crossroad of biotechnologies and agroresources sectors. The second one is the tissue engineering product’s maturation, from the concept to the making of an operational prototype, validated in preoperative conditions; a key step for the product valorization to the companies.

    All these challenges should be met in a consortium federating the different crossborder’s complementariness expertises. Research and development actions include the focusing of PLGA wires (medical grade), the chitosan coating, the knitting textile 3D matrix, and its use for bone rebuilding. Communication actions, which will implement throughout the project, integrate different medias for information diffusion, events organization dissemination to the companies.

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