PVD Coating In Chennai

Approx. Rs 550 / Square MeterGet Latest Price

PVD processes are carried out under vacuum conditions. The process involves four steps: These are Evaporation, Transportation, Reaction, Deposition.

Evaporation – A target is bombarded by a high energy source such as a beam of electrons or ions. This dislodges atoms from the surface of the target, ‘vaporising’ them, therefore depositing the material on the work piece.

Transport – This is the movement of the vaporised atoms from the target to the substrate, or piece to be coated.

Reaction – In cases where metal is the target the PVD coatings will consist of metal oxides, nitrides, carbides and similar such materials. The atoms of metal will then react with the selected gas during the transport stage. The gases used in the above coatings may be oxygen, nitrogen and methane.

Deposition – This is when the coating builds up and bonds to the surface of the substrate. It even penetrates the surface slightly, to give a lasting level of adhesion.