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Plasma technology in medicine.

 
SERVICES

Bangalore Plasmatek can, at present, deposit following coatings on cutting tools and other components.

Aluminium, Titanium, Nickel, Copper, Stainless steel, Gold, Silver, Special alloys, Titanium Nitride (TiN), Titanium Carbide, Titanium Carbonitride (TiCN), Multilayer coatings, Composite coatings.

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RESEARCH & DEVELOPMENT

The coating system at Bangalore Plasmatek, which includes vacuum arc and magnetron sources, was developed indigenously. The processes for various coatings are also developed in house.

Bangalore Plasmatek enjoys taking up challenging research and development projects.

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Bangalore Plasmatek (BPT) is dedicated to develop plasma related technologies for industrial applications. Surface engineering has been immensely benefited by plasma technologies. Surface modification includes coating, nitriding, carburising, ion implantation, polymerisation and so on.

BPT has developed coating technologies based on vacuum arcs and magnetron sputtering. These plasma assisted physical vapour deposition techniques give coatings that are superior to simple physical vapour deposition in terms of adhesion, density, variety etc. 

Vacuum arc is just an electric arc sustained in vacuum. The arc on the cathode evaporates the cathode material which gets ionised and accelerated close to the cathode. The energetic and ionised atoms are deposited on the substrates giving rise to high quality films. BPT uses the so called steered arc technology. This has the advantage of proper arc control, distributed heat dissipation, deposition on large & complex substrates, reduction of macro particles etc.

At BPT metals like titanium, nickel, copper, stainless steel, aluminium etc are deposited on various substrates routinely. Nitrides, carbides and carbonitrides are deposited reactively using suitable gases. Titanium nitride, titanium carbide, titanium carbonitride are some of the useful hard coatings developed at BPT employing reactive deposition techniques.

Magnetron sputtering technology developed at BPT is used to deposit metals like gold, silver, copper as well as some alloys for special applications.

The medium sized coating chamber (1000 x 1000 x 600 mm) is designed for maximum flexibility. It is easy to attach multiple cathodes for both cathodic arc and magnetron sputtering. The large size of the coating chamber makes it possible to coat large and complex objects. Composite and multilayer coatings are deposited using cathodic arcs and magnetrons in appropriate combinations. Components or tools to be coated are cleaned and degreased in an ultrasonic vapour degreasing system. Further cleaning is carried out insitu inside the vacuum chamber by plasma etching where the substrates are bombarded with energetic ions prior to coating.

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