6 results on '"Quertech Ingenierie"'
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2. Design of a nitrogen-implanted titanium-based superelastic alloy with optimized properties for biomedical applications
- Author
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Valentina Mitran, Denis Busardo, Silviu Iulian Drob, Thierry Gloriant, Cora Vasilescu, Anisoara Cimpean, M. Cornen, Daniel Höche, D.M. Gordin, Institut des Sciences Chimiques de Rennes (ISCR), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA), Quertech Ingenierie, Department of Biochemistry and Molecular Biology, University of Bucharest (UniBuc), Institute of Physical Chemistry 'Ilie Murgulescu', Institute of Physical Chemistry, Institute of Materials Research [Geesthacht], Helmholtz-Zentrum Geesthacht (GKSS), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), and Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
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Surface analysis ,Corrosion resistance ,02 engineering and technology ,Nitride ,01 natural sciences ,[CHIM.GENI]Chemical Sciences/Chemical engineering ,X-Ray Diffraction ,Composite material ,Titanium ,Photoelectron Spectroscopy ,021001 nanoscience & nanotechnology ,Body Fluids ,Corrosion ,Ion implantation ,Mechanics of Materials ,Biocompatibility ,Titanium alloy ,0210 nano-technology ,Materials science ,Friction ,Nitrogen ,Surface Properties ,Alloy ,Biomedical Technology ,chemistry.chemical_element ,Bioengineering ,engineering.material ,010402 general chemistry ,Biomaterials ,Fetus ,X-ray photoelectron spectroscopy ,Hardness ,Tensile Strength ,Alloys ,Humans ,ddc:620.11 ,Cell Proliferation ,Osteoblasts ,L-Lactate Dehydrogenase ,Metallurgy ,technology, industry, and agriculture ,Elasticity ,Fibronectins ,0104 chemical sciences ,chemistry ,Potentiometry ,engineering ,Stress, Mechanical - Abstract
International audience; In this study, a superelastic Ni-free Ti-based biomedical alloy was treated in surface by the implantation of nitrogen ions for the first time. The N-implanted surface was characterized by X-ray diffraction, X-ray photoelectron spectroscopy, and secondary ion mass spectroscopy, and the superficial mechanical properties were evaluated by nano-indentation and by ball-on-disk tribological tests. To investigate the biocompatibility, the corrosion resistance of the N-implanted Ti alloy was evaluated in simulated body fluids (SBF) complemented by in-vitro cytocompatibility tests on human fetal osteoblasts. After implantation, surface analysis methods revealed the formation of a titanium-based nitride on the substrate surface. Consequently, an increase in superficial hardness and a significant reduction of friction coefficient were observed compared to the non-implanted sample. Also, a better corrosion resistance and a significant decrease in ion release rates have been obtained. Cell culture experiments indicated that the cytocompatibility of the N-implanted Ti alloy was superior to that of the corresponding non-treated sample. Thus, this new functional N-implanted titanium-based superelastic alloy presents the optimized properties that are required for various medical devices: superelasticity, high superficial mechanical properties, high corrosion resistance and excellent cytocompatibility.
- Published
- 2013
- Full Text
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3. Surface characterization and biocompatibility of titanium alloys implanted with nitrogen by Hardion+ technology
- Author
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V. Chane-Pane, Valentina Mitran, Cora Vasilescu, Thierry Gloriant, Denis Busardo, Anisoara Cimpean, Daniel Höche, D.M. Gordin, Silviu Iulian Drob, Institut des Sciences Chimiques de Rennes (ISCR), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA), Quertech Ingenierie, Department of Biochemistry and Molecular Biology, University of Bucharest (UniBuc), Institute of Materials Research [Geesthacht], Helmholtz-Zentrum Geesthacht (GKSS), Institute of Physical Chemistry 'Ilie Murgulescu', Institute of Physical Chemistry, Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), and Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
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Materials science ,Ion beam ,Biocompatibility ,Cell Survival ,Nitrogen ,Surface Properties ,Alloy ,Biomedical Engineering ,Biophysics ,chemistry.chemical_element ,Bioengineering ,Biocompatible Materials ,02 engineering and technology ,engineering.material ,Mass Spectrometry ,Corrosion ,Biomaterials ,03 medical and health sciences ,chemistry.chemical_compound ,Materials Testing ,Alloys ,Cell Adhesion ,Humans ,030304 developmental biology ,Cell Proliferation ,Ions ,Titanium ,0303 health sciences ,Osteoblasts ,Metallurgy ,technology, industry, and agriculture ,Temperature ,Titanium alloy ,Prostheses and Implants ,[CHIM.MATE]Chemical Sciences/Material chemistry ,021001 nanoscience & nanotechnology ,equipment and supplies ,Titanium nitride ,Extracellular Matrix ,Fibronectins ,chemistry ,Chemical engineering ,engineering ,0210 nano-technology ,Tin - Abstract
International audience; In this study, the new Hardion+ micro-implanter technology was used to modify surface properties of biomedical pure titanium (CP-Ti) and Ti-6Al-4V ELI alloy by implantation of nitrogen ions. This process is based on the use of an electron cyclotron resonance ion source to produce a multienergetic ion beam from multicharged ions. After implantation, surface analysis methods revealed the formation of titanium nitride (TiN) on the substrate surfaces. An increase in superficial hardness and a significant reduction of friction coefficient were observed for both materials when compared to non-implanted samples. Better corrosion resistance and a significant decrease in ion release rates were observed for N-implanted biomaterials due to the formation of the protective TiN layer on their surfaces. In vitro tests performed on human fetal osteoblasts indicated that the cytocompatibility of N-implanted CP-Ti and Ti-6Al-4V alloy was enhanced in comparison to that of the corresponding non treated samples. Consequently, Hardion+ implantation technique can provide titanium alloys with better qualities in terms of corrosion resistance, cell proliferation, adhesion and viability.
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- 2012
- Full Text
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4. Mesure de la résistivité de surface et de charges d’espace par la méthode de l’onde thermique alternative dans le polycarbonate après implantation ionique
- Author
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Salles, Laurent, Reboul, J M, Boudart, B., Busardo, Denis, Laboratoire Universitaire des Sciences Appliquées de Cherbourg (LUSAC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU), Quertech Ingenierie, and BOUDART, Bertrand
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[SPI]Engineering Sciences [physics] ,[SPI] Engineering Sciences [physics] ,ComputingMilieux_MISCELLANEOUS - Abstract
International audience
- Published
- 2012
5. Surface resistance decay by ions implantation on insulating polymers for antistatic surface process
- Author
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B. Boudart, J.M. Reboul, D. Busardo, L. Salles, BOUDART, Bertrand, Laboratoire Universitaire des Sciences Appliquées de Cherbourg (LUSAC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU), and Quertech Ingenierie
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Surface (mathematics) ,chemistry.chemical_classification ,Materials science ,Ion beam ,[SPI] Engineering Sciences [physics] ,02 engineering and technology ,Polymer ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,0104 chemical sciences ,Ion ,[SPI]Engineering Sciences [physics] ,Ion implantation ,chemistry ,visual_art ,visual_art.visual_art_medium ,Antistatic agent ,Composite material ,Polycarbonate ,0210 nano-technology ,Sheet resistance ,ComputingMilieux_MISCELLANEOUS - Abstract
Ions implantation is a process which consists in a modification of the superficial composition of the materials. One particular application consists in providing antistatic properties to polymers. We present three wires surface resistance measurements on ions implanted polycarbonate (PC). An investigation has been realized using different doses and different gaseous elements (N, He, Ar) for the ion beam generation. A strong decrease of surface resistance has been observed depending on the dose and the polymer.
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- 2011
6. Magnesium nitride phase formation by means of ion beam implantation technique
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Denis Busardo, Thierry Gloriant, Daniel Höche, Carsten Blawert, Matthieu Cavellier, Institute of Materials Research [Geesthacht], Helmholtz-Zentrum Geesthacht (GKSS), Institut des Sciences Chimiques de Rennes (ISCR), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA), Quertech Ingenierie, Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), and Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
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Materials science ,Ion beam ,Analytical chemistry ,General Physics and Astronomy ,02 engineering and technology ,Nitride ,01 natural sciences ,chemistry.chemical_compound ,Ion beam deposition ,X-ray photoelectron spectroscopy ,0103 physical sciences ,XPS ,Magnesium nitride ,ComputingMilieux_MISCELLANEOUS ,ddc:620.11 ,010302 applied physics ,Surfaces and Interfaces ,General Chemistry ,[CHIM.MATE]Chemical Sciences/Material chemistry ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,Surfaces, Coatings and Films ,Dielectric spectroscopy ,Corrosion ,Chemical state ,Ion implantation ,chemistry ,0210 nano-technology - Abstract
Nitrogen implantation technique (Hardion + ) has been applied in order to modify the surface properties of magnesium and Mg- based alloys (AM50, AZ31). Nitrogen ions with an energy of approximately 100 keV were used to form the Mg3N2 phase leading to improved surface properties. The samples were investigated using various characterization methods. Mechanical properties have been tested by means of nanoindention, the electrochemical behavior was measured by potentiodynamic polarization and impedance spectroscopy, phase formation by using grazing incidence Xray difiraction, the chemical state was determined by means of Xray induced photoelectron spectroscopy (XPS) and depth proflling by using secondary ions mass spectroscopy (SIMS). Additionally, the results were compared to calculated depth proflles using SRIM2008. The correlation of the results shows the nitride formation behavior to a depth of about 600 nm.
- Published
- 2011
- Full Text
- View/download PDF
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