COATING APPLICATIONS

Physical vapor deposition involves:

• Creation of reactive spices such as atoms, activated atoms, ions and energized species.
• Transport of these reactive species to substrate with or without plasma environment.
• Reaction of two or more atoms orions to create a compound which will deposit on the substrate as coating.
• Nucleation growth and deposition on the substrate as protective coating.

In general, the most PVD technologies utilizes plasma in the deposition technology as the most important tool to control coating properties. Future application industry may be limit to mankind imagination. The coating materials may be pure metals, alloys, ceramic or composites. Plasma assisted PVD technology has provided unique opportunity to scientist to engineer to fabricate many complex designed coating which will provide multiple solutions in the various fields of Aerospace applications and Energy and Power environments. It is therefore, not an exaggeration to state that plasma assisted physical vapor deposition technologies has become "Solutions in search of a problem".

It is important to mention the Plasma Coating Technologies, Inc. provides everyday applications coatings used in cutting tools, aerospace, medical components, automobile, energy and power; however, PCT, Inc. also takes individual customer specialized coating needs and develop Customized Engineered Coating to find the Coating Solutions. This could be a short-term project for by 2-4 months or long term 3-6 months’ time scale. Finally, Kamleshwar Upadhya President of Plasma Coating Technologies, Inc. has developed many highly Innovative Technologies Coating for aerospace and automobile industries and obtained USA patents which has been assigned to PCT, Inc. One of such coating is multi-layered nano-grains nano-layered ceramic composite coating for aircraft engine compressor blade applications. This multilayered nano-tech coating is extremely beneficial against airborne particle impact and also provides many folds increased erosion and corrosion resistance. The PVD ceramic coating possesses 10-12-micron in thickness and does not change either dimension or weight of the compressor blade and thus Aerodynamic Efficiency of the engine. It increases erosion and corrosion resistance by 4-5 times in comparison to uncoated blades and reduce the fuel consumption by 2 to 3 percent. Interested companies are invited to obtain further technical details on this coating. MDS Corporation and Delta Airline are using TiN based PVD coating on compressor blade and military Helicopter Air foil blade for the last two years successfully.

In the interest of customers, a brief background of Plasma state and role of plasma in plasma assisted PVD is describe here. This will make easier for customers to understand why plasma provides much enhanced physical and mechanical properties of PAPVD coatings.

In the era of current high technology, the tendency to use a Composite Material where the surface. Physical and mechanical properties are different of those of bulk material is becoming increasing essential. Recently plasma assisted PVD is providing the needed technology to fulfill the needs of Aerospace, Medical and Automotive industries for depositing Composite Coating. Plasma is generally called fourth state of matter and consists of activated, ionized and highly energized atoms, ions and gaseous spices. Plasma contains ions and electrons in equal numbers; therefore, it is electrical neutral. In plasma ionized vapor species have greater reactivity and also can be accelerated in the electrical field. This combination of the two properties will provide a coating with much better physical and chemical properties; therefore, the main theme for developing a powerful and efficient coating process is clear: Ionized the coating species and transport them to the surface to be modified and coated in an electric field (Plasma system) which is The PAPVD Coating Deposition Process.