A5101982311- Bone Tissue Engineering Materials
- Dental Implant Techniques and Outcomes
- Metallic Glasses and Amorphous Alloys
- Advanced ceramic materials synthesis
- Dental materials and restorations
- Advanced materials and composites
- High Entropy Alloys Studies
- Additive Manufacturing Materials and Processes
- Titanium Alloys Microstructure and Properties
- Material Properties and Applications
- Turbomachinery Performance and Optimization
- Advanced Nanomaterials in Catalysis
- Hydrogen embrittlement and corrosion behaviors in metals
- Combustion and flame dynamics
- Additive Manufacturing and 3D Printing Technologies
- Cultural and Historical Studies
- Polymer Science and Applications
- Graphene and Nanomaterials Applications
- Phase-change materials and chalcogenides
- Intermetallics and Advanced Alloy Properties
- Nuclear materials and radiation effects
- Thermal and Kinetic Analysis
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Polymer Surface Interaction Studies
- Diamond and Carbon-based Materials Research
Anthogyr (France)
2017-2025
CEA Marcoule
2022-2023
Continental (Germany)
2023
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2022-2023
Université de Sherbrooke
2017-2021
Matériaux Ingénierie et Science
2012
Université Claude Bernard Lyon 1
2012
Centre National de la Recherche Scientifique
2012
Abstract Forty years ago, Garvie and his Australian co‐workers reported that the stress‐induced transformation of metastable tetragonal zirconia grains to monoclinic symmetry could give rise a powerful toughening mechanism. Their results even led them consider systems as analogues certain steels. This seminal paper generated extraordinary excitement in ceramic community it is still subject extensive research. Transformation widely used materials an increase strength toughness when compared...
Tribo-electrochemical behavior in physiological solution of two β-type (100-x)(Ti-45Nb)-xGa (x = 4, 8 wt%) alloys, alongside β-Ti-45Nb and medical grade Ti-6Al-4V ELI, was investigated. Microstructure mechanical were evaluated by X-ray diffraction, microhardness ultrasonic method. Tribocorrosion tests (open circuit potential, anodic potentiostatic tests) performed using a reciprocating pin-on-disk tribometer under constant load. Degradation mechanisms are similar for the alloys: plastic...
Ti40Zr10Cu36Pd14 Bulk Metallic Glass (BMG) appears very attractive for future biomedical applications thanks to its high glass forming ability, the absence of toxic elements such as Ni, Al or Be and good mechanical properties. For first time, a complete exhaustive characterization unique batch this glassy alloy was performed, together with ISO standard tests on machined implant-abutment assemblies. The results were compared benchmark Ti-6Al-4V ELI (Extra-Low-Interstitial) assess potential in...
β-type Ti–Nb alloys are promising materials for load-bearing implant applications with improved mechanical biofunctionality and biocompatibility. In this work, the electrochemical tribo-electrochemical behaviour of laser powder bed fusion (LPBF) produced Ti–42Nb alloy processed via Gaussian top hat was investigated compared commercial grade Ti–45Nb α+β-type Ti–6Al–4V ELI. Electrochemical impedance spectroscopy (EIS) potentiodynamic polarization experiments were performed in...
Abstract The development of long‐lasting zirconia‐based ceramics for implants, which are not prone to hydrothermal aging, is satisfactorily solved. Therefore, this study conceived as an overall evaluation screening novel ceria‐stabilized zirconia–alumina–aluminate composite (ZA 8 Sr ‐Ce11) with different surface topographies use in clinical applications. Ceria‐stabilized zirconia chosen the matrix material, due its lower susceptibility aging than yttria‐stabilized (3Y‐TZP). This assessment...
One of the limitations to use certain bulk metallic glasses is related formation crystalline zones or defects, often called "spherulites", during casting process. In case Ti40Zr10Cu36Pd14 (at%) glass, which a candidate for biomedical applications, spherulites diameter up few hundreds microns were previously reported, but their crystallographic features and role in mechanical behavior corrosion resistance remains be determined. this work, detailed description microstructure provided. Tensile,...
To prevent the uncontrolled development of a pathogenic biofilm around dental implant, an antimicrobial drug-release electrospun membrane, set up between implant and gingival tissue, was developed by taking several technical, industrial regulatory specifications into account. The membrane formulation is made blend poly(l-lactic-co-gycolic acid) (PLGA, 85:15) poly(l-lactic acide-co-ɛ-caprolactone) (PLC, 70:30) copolymers with chlorhexidine diacetate (CHX) complexed β-cyclodextrin (CD). amount...
Biocompatible titanium-based bulk metallic glasses (Ti-based BMGs) are attractive for application in minimally invasive medical devices. They present a desirable set of properties, including low Young's modulus (E ≈ 100 GPa) and high yield strength (σ 2000 MPa). However, their implementation into practical applications is part hindered by limited glass forming ability (GFA) compared to BMG systems already commercialised. Due GFA, Ti-BMGs more susceptible crystallisation. This study...
Due to their outstanding elastic limit, biocompatible Ti-based bulk metallic glasses (BMGs) are candidate materials decrease the size of medical implants and therefore reduce invasiveness. However, practical use classical Ti-BMGs in applications is part hindered by high copper content: more effort thus required design low-copper Ti-BMGs. In this work, line with current rise AI-driven tools, machine learning (ML) approaches, a neural-network ML model used explore glass-forming ability (GFA)...
Ceramic turbines can reduce fuel consumption by increasing turbine inlet temperatures (TIT). The need for heat-resistant materials like ceramics is particularly acute small turbomachines which efficiencies are limited the use of uncooled metal as complex cooling schemes impractical and costly. Efforts to introduce in rotor were made between 1960s 1990s gas automotive manufacturers U.S., Europe, Japan. While significant progress was made, a suitable level reliability still cannot be achieved...
Pre-treated silica with a plasma-deposited (PD) layer of polymerized precursors was tested concerning its compatibility Natural Rubber (NR) and influence on the processing silica-silane compounds. The modification performed in tailor-made plasma reactor. degree deposition plasma-coated samples analyzed by ThermoGravimetric Analysis (TGA). In addition, Diffuse Reflectance Infrared Fourier Transform spectroscopy (DRIFTs), X-ray Photoelectron Spectroscopy (XPS), Transmission Electron Microscopy...
The histological image on the cover displays interface between a ceramic implant and newly formed bone tissue (red). In article number 1702512, Brigitte Altmann co-workers reveal in preclinical evaluation screening using human cells, an animal model, situ microbiological methods, new ceria-stabilized zirconia-alumina-aluminate composite conjunction with porous surface topography as superior material for clinical applications.
The use of ceramics in gas turbines potentially allows for very high cycle efficiency and power density, by increasing operating temperatures. This is especially relevant sub-megawatt turbines, where the integration complex blade cooling greatly affects machine capital cost. However, are brittle prone to fragile, catastrophic failure, making their current limited static low-stress parts. Using inside-out ceramic turbine (ICT) configuration solves this issue converting centrifugal loading...
More than 40 years ago, Garvie et al. (1975) have shown that the transformation of metastable tetragonal (t) zirconia grains towards monoclinic (m) symmetry could be at origin a very pow...