Developed for tribological applications, WC/C is a layer composed of Tungsten carbide lamellae alternate to amorphous carbon lamellae and is deposited by means of Magnetron Sputtering technology .
The WC/C coating is equipped with high hardness, good wear resistance and it is also antiseptic.
But the characteristic for which is appreciated most is the low coefficient of friction which makes this layer an excellent solution to prevent phenomena such as seizure adhesives and cold welding .
In this regard, the WC/C covers all the sliding/rolling parts such as engine gears, camshafts, compressors’screws, guideways, ball bearing rings, worms, and all the moving parts in poor lubrication conditions.
The WC/C is accepted by the FDA (Food and Drugs Administration) and since long time it has been applied in the food industry on various types of elements such as blades and discs for cutting tea and coffee, dispensers and parts for the handling of tobacco, pasta and olive oil.
The WC/C is deposited through a process that develops a temperature not exceeding 180°C, and this allows its application to a wide variety of materials ranging from Ti- tanium and its alloys up to different types of Steels with a particular statement by the range of Stainless Steels and Cementation Steels.
The WC/C is one of the ceramic coatings that comply with the dictates of ISO 10993.
According to this Norm, the WC/C is declared biocompatible and shows no cytotoxicity, skin irritation and acute systemic toxicity .
|Basic Composition||Deposition Technology||Microhardness (HV 0.05)||Coefficient of friction against 100 Cr 6||μm thickness (microns)||Deposition Temperature (°C)||Max Temperature of use (max ° C)||Colour|
|Carbide of Tungsten and Carbon||Magnetron Sputtering||1.300 - 1.500||0,15||1- 4||<180||350||Anthracite|