Properties & application possibilities:

  • Smooth surface
  • High mechanical hardness
  • Chemical resistance
  • Low coefficient of friction between the tool and the workpiece
  • Non-reflective surface
  • Suitability for biocompatible products

Categories of
DLC coatings:

  • a-C = hydrogen-free amorphous carbon
  • ta-C = tetrahedrally bound hydrogen-free amorphous carbon
  • a-C:Me = metal-doped hydrogen-free amorphous carbon
    (Me = Ti)
  • a-C:H = amorphous carbon with hydrogen
  • ta-C:H = tetrahedrally bound amorphous carbon with hydrogen
  • a-C:H:Si = Si-doped amorphous carbon with hydrogen
  • a-C:H:Me = metal-doped amorphous carbon with hydrogen
    (Me = W, Ti)
Diamond Like Carbon Graph

Comparison of the most important properties of PLATIT DLC coatings

  • DLC1

    DLC2

    DLC3

    DLC3

  • PLATIT coating unit

    Pi411,
    PL1011

    Pi411,
    PL711

    Pi411

    PL711

  • Composition

    a-C:H:Me

    a-C:H:Si

    ta-C + a-C
    (over 50% ta-C)

    ta-C + a-C
    (up to 50% ta-C)

  • Process

    ARC in C2H2 atmosphere

    PECVD

    SPUTTERING

    SPUTTERING

  • Coating architecture

    As top layer

    As stand-alone or as top layer

    As stand-alone

    As stand-alone

  • Doping

    Ti or Cr

    Si

    None

    None

  • Coating thickness [µm]

    < 1

    < 3

    0.3 - 1

    1 - 2

  • Young’s modulus [GPa]

    200

    250

    350 - 450

    350 - 450

  • Nano-hardness [GPa]

    < 20

    > 25

    45 - 50

    > 30

  • Roughness

    Ra ~ 0.1 µm
    Rz ~ coating thickness

    Ra ~ 0.03 µm
    Rz ~ coating thickness

    Ra ~ 0.06 µm
    Rz ~ coating thickness

    Ra ~ 0.02 µm
    Rz ~ coating thickness

  • Coefficient of friction [μ]
    PoD (at RT, 50 % humidity)

    0.15

    0.1 - 0.2

    0.1

    0.1

  • Max. service temperature [°C]

    400

    400

    450

    450

  • Coating temperature [°C]

    < 400

    < 220

    < 150

    180 - 250

  • Main application

    Improvement of the run-in process of a tool,lubrication by formation of transfer films

    Components, punches and dies

    Tools

    Components

In order to give you a better service, this website uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I agree.