Vacuum deposition
DLC Diamond-Carbon: The High-Performance Vacuum Coating
DLC Diamond-Carbon (Diamond-Like Carbon) is a high-performance coating obtained by vacuum deposition using a plasma-assisted physicochemical process. Thanks to the decomposition of a hydrocarbon gas mixture under the effect of a radiofrequency electrical discharge, this coating is distinguished by its exceptional tribological and mechanical properties.
Featuring a hybrid sp³ and sp² structure, DLC combines the qualities of diamond and graphite, offering unparalleled performance in terms of anti-friction, hardness, and chemical resistance. It is the ideal solution for solving the most complex industrial challenges in the mechanical (automotive and aeronautical), optical, electronic, and medical sectors.
Benefits
The Benefits of DLC Diamond Carbon
– Anti-friction: Significantly reduced friction and improved lubrication
– Hard and Thin Coatings: Increased mechanical strength while maintaining minimal thickness
– Food Coatings: Suitable for food processing environments
– Exceptional Durability: Extends part life and reduces maintenance costs
– Chemical Resistance: Inert to acids, bases, solvents, salts, and Soda
– Thermal stability: Maintains its performance up to 400°C
– Biocompatibility: Does not damage cells, ideal for medical devices
– Uniform coating: Homogeneous deposit over the entire surface
Features
Technical characteristics of DLC
– Composition: Carbon, hydrogen, and doping elements
– Deposition: Uniform over the entire surface
– Structure: Mixture of sp³ (diamond) and sp² (graphite)
– Density: 1.8 to 2.2 g/cm³
– Hardness: 3500 HV
– Thickness: 3 to 5 microns
– Thermal stability: Up to 400°C
– Processing temperature: 200° to 300°C for 4 hours
– Coefficient of friction:
+ DLC on DLC: 0.05
+ DLC on steel: 0.10
– Adhesion: Critical load LC = 40 N
– Thermal conductivity: > 400 W/K/m
– Linear expansion coefficient: 10 × 10⁻⁶ °C
– Permeability: Hydrogen and gas barrier
– Electrical resistance: 10⁸ ohms·cm
– Dielectric constant: 10 to 10 kHz – 4 to 10 MHz
– Optical transparency: 2 to 50 microns
– Refractive index: 1.9 to 2.3
– Chemical resistance: Inert to acids, bases, solvents, and salts
– Biocompatibility: Does not damage cells
Typical application
Tooling
– Reduced mechanical stress
– Excellent surface finish
– Increased stamping rates
– Reduced production costs
– Improved tool life
Mechanical parts
– Lubrication-free operation
– Anti-abrasion and anti-adhesive
– Increased part lifespan
– Reduced maintenance costs
– Resistance to chemical attack
– Ideal for high-stress parts
– Plastic injection
– Anti-material sticking
– Reduced Abrasive wear
– Corrosion protection
– Elimination of galling
– Dimensional stability and surface cleanliness
Why choose DLC for your industrial applications?
The DLC Carbon-Diamond coating is the ideal solution for environments where wear, corrosion, and impact resistance are essential. Its innovative composition and exceptional properties guarantee increased reliability and long-lasting performance.
Contact us today to learn more about our coating solutions and get a personalized quote!
