DLC (diamond-like carbon) coating is highly durable and offers excellent scratch resistance.
It is tougher than bare steel and provides greater durability to timepieces and other materials.
Despite being only a few microns thick, DLC coating demonstrates remarkable toughness.
4 Key Factors You Need to Know About DLC Coating Durability
DLC films are typically deposited using the radio frequency plasma-assisted chemical vapor deposition (RF PECVD) method.
This method allows for the deposition of carbon films with a wide range of optical and electrical properties.
DLC films exhibit good adhesion to various substrates and can be deposited at relatively low temperatures.
These films are known for their high hardness and chemical resistance, making them ideal as protective coatings for different materials.
The durability of DLC coating is comparable to that of polycrystalline diamond films.
Polycrystalline diamond films, produced through high-temperature chemical vapor deposition (CVD), exhibit hardness similar to that of natural diamond.
DLC coatings, in their different forms such as ta-C, a-C, or H-terminated DLC, have low coefficient of friction (COF) and are used in automotive and machinery industries to save energy in power trains, bearings, camshafts, and other components.
DLC coatings have a high hardness ranging from 1500 to 3000 HV (Vickers hardness) and can be deposited even at relatively low temperatures of around 300 °C with strong adhesive strength when appropriate bonding layers are used.
Overall, DLC coating is highly durable, providing excellent scratch resistance and chemical resistance.
It is widely used as a protective coating for various applications, including timepieces, automobile pistons, bores, VCR heads, copier machine drums, and textile machinery components.
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