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A coating is a covering that is applied to the surface of an object, or substrate. [1] The purpose of applying the coating may be decorative, functional, or both. [ 2 ] Coatings may be applied as liquids , gases or solids e.g. powder coatings .
PVD coatings have the ability to utilize virtually any type of inorganic and some organic coating materials on an equally diverse group of substrates and surfaces using a wide variety of finishes. PVD processes are often more environmentally friendly than traditional coating processes such as electroplating and painting.
Thermal spraying techniques are coating processes in which melted (or heated) materials are sprayed onto a surface. The "feedstock" (coating precursor) is heated by electrical (plasma or arc) or chemical means (combustion flame).
Surface finishing is a broad range of industrial ... In limited cases some of these techniques can be used to restore ... reflective nature of the coating process. ...
In this process, an amino acid chain is grown by a series of condensation reaction from a polymer bead surface. This grafting technique allows for excellent control over the peptide composition as the bonded chain can be washed without desorption from the polymer. Polymeric coatings are another area of applied grafting techniques.
Surface modification is the act of modifying the surface of a material by bringing physical, chemical or biological characteristics different from the ones originally found on the surface of a material. [1] This modification is usually made to solid materials, but it is possible to find examples of the modification to the surface of specific ...
Surface engineering techniques are being used in the automotive, aerospace, missile, power, electronic, biomedical, textile, petroleum, petrochemical, chemical, steel, cement, machine tools and construction industries including road surfacing. Surface engineering techniques can be used to develop a wide range of functional properties, including ...
The sol-gel technique is a deposition method that is widely used in material science to create protective coatings, optical coatings, ceramic coatings and similar surfaces. This technique starts with the hydrolysis of a liquid precursor (sol), which undergoes poly-condensation to gradually obtain a gel.