Sealing, Heat-Emitting, Protective Gas-Dynamic Coating and Spraying Facilities Special technology has been developed for applying to any surface of aluminium, copper, titanium, nickel, cobalt, and their mixtures with harder substances and ceramic materials. The technology includes acceleration of powder particles in a high-speed (600 m/sec) gas flow. The coating is formed in process of interaction of the particles with a surface. Spray Gun animation Red = Powder; Blue = Air Advantages: Lack of high-temperature gas spurts (unlike in gas-thermal methods) allows to apply onto materials which can’t endure thermal exposures; Facility is small in size and simple in operation; Easy substitution of the applying substances when producing different kinds of coating; Producing coatings of various thickness and from various materials; The technology does not require any special cleaning of the surface. Dependence of spraying factor on the stream velocity Click on image to enlarge Spraying Setup Spraying Mobile Setup Spray Gun Applications: Connection of units, hermetic sealing of parts and components – mechanical connection of the parts made of different materials (for example ceramics–metal), hermetic sealing of pipelines, reservoirs, hermetic inputs, stopping leakage; Restoration of form and dimension for parts and items, which do not require high hardness; Electro-conducting coatings on glass and ceramics; Ornamental microerrosive surface procession – to frost glass, to give a mat surface to ceramics, metals, ornamental surface procession with small glass spheres. Producing of electro-conductive layers on ceramic materials; Producing of light-reflecting layers on glass; Restoration of the dimensions of the parts from cast aluminium, copper, bronze; Protection of steam turbine blades of the cavitation wear; For the ornamental processing metals, glass, ceramics; To protect thermocouples in melted zinc tabs; To produce getters in gas discharge electro-vacuum lamps. Novel Coating with Unique Properties The basic Diamond-Like Nanocomposite (DLN) coating technology provides coatings, which are: Intrinsically had and impervious; Strongly adhere to virtually any material; Have an extremely low coefficient of friction; Can withstand oxygen-containing environments up to 500–600°C; Stable in oxygen-free atmospheres up to 1200°C; The intrinsically pore free nature of the films is an additional feature which delivers benefits such as corrosion resistance and diffusion barrier properties. The coatings have also been shown to possess high dielectric breakdown strength and erosion resistance. Properties of Diamond-Like Nanocomposite Films Property Range of obtainable values Coefficient of friction 0.03...0.2 Adhesion 107...109 N/m2 Adheres to a wide range of substrates including metals, plastics, and ceramics; no interlayers required. Thermal stability Stable to 400...600 grad.C in air; capable of 1000...1200 grad.C in absence of oxygen Physical flexibility Very flexible; does not crack when bent Corrosion and erosion Resistant to acids, alkalis, and particulates due to pore-free structure Electrical conductivity 10^4...10^14 Ohm*cm Hardness 10...22 GPa Modulus of elasticity 150...200 GPa Residual stress 200...300 MPa Transmission 70...80% at 0.5...20 microns Optical Transmission of Diamond-Like Nanocomposite Coatings on Polycarbonate Substrates Sand Erosion Test (ASTM D968) for Uncoated and Coated Aluminum Alloy 6061 and Type 410 Stainless Steel