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Arc Evaporation

High-density coatings with exceptional hardness and outstanding adhesion

Arc evaporation is a process for depositing thin, extremely hard, highly adhesive coatings on tools and components.

Arc evaporation is a process for depositing thin, extremely hard, highly adhesive coatings on tools and components.

In this process, an arc with a diameter ranging from microns to just a few tenths of a micron, is run over the solid, metallic coating material, causing it to evaporate. The high currents and power densities used cause almost complete ionization of the evaporated material and, thereby, the formation of a high-energy plasma.

The metal ions combine with a reactive gas that is introduced into the chamber, strike the target tools or components with high energy and are deposited as a thin and highly adherent coating.

Oerlikon Balzers has further refined Arc Evaporation with its innovative Advanced Arc Technology (AAT). This advancement improves the overall coating process, boosting performance and efficiency. Learn more about the benefits of AAT.

Arc evaporation process

Arc evaporation process

Schematic representation of the arc evaporation process, also known as arc coating.

  1. Argon
  2. Reactive gas
  3. Arc Sources (coating material and backing plate)
  4. Components/Tools
  5. Vacuum pump

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