Surfaces and interfaces: chemical reactivity of materials

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Surfaces et interfaces : réactivité chimique des matériaux
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Your needs

  • Study of the rates and mechanisms of degradation of metals and ceramics in severe environments by oxidation, corrosion and dissolution
  • Fundamental study of the kinetics and mechanisms of interfaces reactions
  • Study of the corrosion behavior of metals and ceramics in various environments (high temperature, aggressive chemical environments, thermal cycling…)
  • Kinetic and thermodynamic modelling of degradation processes and processes implemented for protection to predict the lifespan of materials

Our solutions

  • Provide solutions against corrosion through specific experimental methods and modelling
  • Develop protection solutions through the study of new materials and multifunctional coatings
  • Develop innovative and controlled processes in the field of surface treatments
  • Limit materials degradation:
    - Modifying the composition of alloys  
    - Modifying the oxidizing nature of the environment (controlled or reducing atmosphere, corrosion inhibitor)  
    - Modifying the surface by conversion pre-treatment (anodizing, selective oxidation, etc.) or by protective metal coating (thermochemical treatment, Slurry)
  • Thermal analysis / calorimetry / calculations  
  • Characterize surfaces and interfaces   
  • Develop structural materials (alloys, pure intermetallic phases)
  • Develop coatings by:  
    - Chemical conversion
    - Electrolytic plasma anodization and oxidation
    - Cementation process
    - Slurry 
    - Sol gel  
  • Carry out specific electrochemical characterizations:
    - Stationary methods for determining kinetics and corrosion processes     
    - Electrochemical impedance spectroscopy     
    - Electrochemistry in molten salt and molten silicate media (up to 1300°C)      
    - Electrochemistry up to 700 V in pulsed mode

Keywords

  • Interfaces
  • Corrosion
  • Materials under extreme conditions
  • Surface treatments
  • Surface properties
  • Refractory metallic materials
  • Multifunctional coatings
  • Electrochemistry
  • Thermochemistry
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Related skills

  • Hot corrosion
  • Atmospheric corrosion
  • Thermal analysis / calorimetry / calculations
  • Surfaces and interfaces characterization : 
    - Electron microscopy
    - X ray diffraction

Our references

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