TT®-DLC
TT®-DLC is a metal-free diamond-like layer of carbon and is deposited at low temperatures using the PACVD process. The combination of good wear-resistance and outstanding frictional and non-stick properties makes TT®-DLC coatings an ideal surface treatment for components and tools subject to high frictional forces./p>
TT®-C-DLC
TT®-C-DLC coatings are a sub-group of the amorphous, diamond-like carbon coatings (DLC – Diamond-
Like Carbon). Unlike the majority of the commercially available TT®-DLC coatings, they are not deposited
from gaseous hydrocarbons (e.g. acetylene or methane) using the plasma-activated CVD process
(PACVD – Plasma Assisted Chemical Vapor Deposition).
TT®-C-DLC coatings can achieve both a higher hardness and a lower coefficient of friction than the TT®-
DLC coatings deposited by the PACVD process. The properties of TT®-C-DLC coatings are summarized in
the table.
TT®-C-DLC coatings are normally deposited with a thickness of 1.5 ± 0.5 μm. Because of their properties,
these coatings are often used for standard components.
TT®-TA-C
TT®-ta-C coatings are a sub-group of the amorphous, diamond-like carbon coatings (DLC – Diamond-Like Carbon).
TT®-ta-C is a tetahedral, amorphous, hydrogen-free carbon coating that is produced from solid carbon (graphite) by means of laser arc technology (PVD process).
- Coating structure:
Hydrogen-free, tetahedral, amorphous carbon, sp³ content adjustable above 85 %
- Hardening:
4500–7000 HV, adjustabl
- E-modulus
300–450 GPa, adjustabl
- Coefficient of friction:
0.05–0.10 (dry on steel)
- Wear coefficient:
1*10-8 mm³/Nm (dry on steel)
- Temp. resistance:
400– 500°C in air, <800°C in vacuum
- Coating thickness:
0.1–4.0 μm
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