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Cathodic Arc Ion Plating

High-Performance Vacuum Coating Systems

Principle:
By utilizing arc discharge, one or multiple tiny cathode spots with extremely high energy density are generated on the target surface. The target material is instantaneously melted, vaporized, and highly ionized, forming a high-energy ion stream that deposits onto the substrate under negative bias voltage.



Characteristics:

  • Advantages: High ionization rate (60%–90%), excellent coating adhesion, and fast deposition rate. 
  • Disadvantages: Easily generates micron-sized molten metal droplets (“macro-particles”), resulting in relatively high surface roughness. 


Applications:

  • Cutting Tools: Widely used for hard coatings such as TiN and TiAlN to extend tool life. 
  • Automotive & Aerospace: Provides wear-resistant and high-temperature protection for engine components, molds, and critical parts. 
  • Decorative Industry: Production of decorative coatings such as imitation gold and rose gold finishes. 
  • Advanced Development: Filtered arc technology has been developed to reduce droplet generation. In addition, plasma confinement and control through pulsed magnetron technology enables the preparation of higher-performance coatings.
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