Wear Resistant and Friction Reducing Coatings – Wear-SP3EC™
Wear-SP3EC™ is a species of the SP3EC™ nanocrystalline diamond thin film family, which has been engineered specifically to reduce friction and increase wear resistance between two surfaces.
Surface modifications using the SP3EC coating on engineering materials provides many benefits for applications under high load; including decreased friction coefficient, improved load capability and opportunity to decrease overall weight.
Other diamond-like coatings typically use a non-carbon interfacial layer to increase the adhesion of the film to the surface, but at the same time increasing the chance of failure under load. Diarkis uses a proprietary method developed in conjunction with the military to eliminate the need for a non-carbon interfacial layer which provides pure film adhesion to the surface allowing for increased wear prevention and film durability.
Application of SP3EC coatings have demonstrated up to a 10x improvement in surface hardness for a wide range of materials at thicknesses as small as 250 nanometers.
Wear-SP3EC coatings can be tailored to improve durability against the following failure modes:
- Fretting
- Galling
- Scratching
- Erosion
- Corrosion
Benefits:
- Improved wear and abrasion resistance
- Direct bonding provides maximum adhesion, no interfacial layers
- Up to 10X improvement in surface hardness
- Resistant to fretting and galling
- Provides corrosion protection
- Dramatic decrease in friction
Potential engineering benefits from application of Wear-SP3EC coatings:
- Decreased power consumption
- Improved efficiency
- Increased contact load capability
- Opportunity to decrease component weight
- Secondary lubrication
- Preserved dimensional and thermal treatment tolerances
Proven Applications:
- Gears
- Internal Engine Components
- Bearing Races
- Shaft Seals
- Compressor Components
The coating is applied using a Plasma-Enhanced Chemical Vapor Deposition (PECVD) chamber at room temperature. The coating is conformal and can be applied to complex geometries.
Compatible Substrates:
- 4340, 9310, M2, C-300 and other Iron based alloys
- 718, 625, Invar and other Nickel based alloys
- 6-4, 6-2-4-2, CP and other Titanium based alloys
- Nitinol
- Carbides
- Aluminum Alloys
- Magnesium
- Polymers
- Silicon, Germanium
If your substrate is not listed above please contact Jordan Larson at 704-888-2470 ext. 27.