Surface & Multifunctional Coatings Technologies Platform

This equipment is dedicated to the development of new coatings on metallic alloys by the use of an innovative process called Micro-Arcs Oxidation (MAO) or Plasma Electrolytic Oxidation (PEO).
It enables to study and optimise the many key process parameters and also to develop new technological solutions.


Specific Generator

  • Maximum voltage: 1 000 V
  • Current: from 5 A to 70 A
  • Frequency: from 100 Hz to 1000 Hz
  • Capacity to apply a complex electrical signal
Control Unit

  • Remote control station to set all the process equipment parameters (generator, treatment baths)
  • Dedicated software to monitor all the electrical parameters of the generator
Treatment baths

  • Two independent baths of 70 L and 115 L
  • Baths thermo-regulation system: from 10°C to 40°C
  • Polypropylene bath with transparent panels enabling to observe micro-arcs’ formation and perforated protective covers to avoid electrification risks
  • ATEX movable extraction arm


Micro-Arcs Oxidation platform is dedicated to research and development of innovative multifunctional coatings, compatible with regulations, on light alloys for aeronautical applications.

  • Answer to industrial R&T projects or subcontracting requests :
    • expertise of research team
    • choice and optimization of process parameters according to coatings performances’ requirements