PVD Processes The PVD processes

What is PVD coating?

PVD is the abbreviation of Physical Vapor Deposition. It is a process carried out in high vacuum at temperatures between 150 and 500 °C.

How does the PVD process work?

The high-purity, solid coating material (metals such as titanium, chromium and aluminium) is either evaporated by heat or by bombardment with ions (sputtering). At the same time, a reactive gas (e.g. nitrogen or a gas containing carbon) is introduced; it forms a compound with the metal vapour and is deposited on the tools or components as a thin, highly adherent coating. In order to obtain a uniform coating thickness, the parts are rotated at uniform speed about several axes.

The properties of the coating (such as hardness, structure, chemical and temperature resistance, adhesion) can be accurately controlled.

The PVD processes include arc evaporation, sputtering, ion plating, and enhanced sputtering.

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