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Titanium Aluminium Nitride (TiAlN)

Titanium Aluminium Nitride is a bright blue/black coloured ceramic coating applied to suitably prepared surfaces by the physical vapour deposition (PVD) process. The coating is of extreme hardness, has low coefficient of friction with most metallic surfaces and resist oxidation up to 800°C.

Wallwork Cambridge produces TiAlN coatings using a process of electron beam evaporation under vacuum at a workpiece temperature of about 480°C. This method of manufacture results in coatings which are very smooth and require no post coating processing, the highly adherent deposited films strongly resist oxidation, abrasive and adhesive wear.

Typical Properties

Coating Thickness 1-4µm
Hardness 3000 Hv
Max Operating Temp 800°C
Coefficient of Friction against Steel (dry) 0.4

Applications

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