Arc

【What is Arc?】

  • Arc Theory

The principle of Cathodic Arc Deposition involves applying a high-voltage pulse to the target surface while initiating a brief short circuit (arcing) through a triggering mechanism. This generates an arc discharge, which is guided across the target by a magnetic field. Depending on the process requirements, reactive gases may be introduced to form the desired coating.

  • Arc Features
    • Good Adhesion to Metal Substrates: Due to the high kinetic energy of metal ions, they can penetrate into the surface layer, resulting in a stronger bonding between the coating and the substrate.
    • High Coating Density: The coating exhibits a compact structure, making it suitable for harsh environments.
    • High Ionization Rate: The plasma consists predominantly of metal ions, leading to a faster deposition rate.
    • Various Compound Coatings: Such as TiAlN, TiCN, AlTiSiN, and others.