Where is the abrasive or gradual removal of materials at solid surfaces? It is caused due to the interaction between the sliding surface by mechanical action. The abrasive wears can be recognised as scratches or grooves. To enhance the wear resistance suitable nanocoating is applied on the material surface for better tribological properties such as hardness and toughness. Wear resistant nanocoating is used to reduce or eradicate wear to extend the lifetime of the EN8 steel. EN8 is unalloyed medium carbon steel with better mechanical properties than mild steel and also readily machinable in any condition. The nanocoating materials such as Al2O3, TiO2, SiC, ZrO2, WS2, Si3N4 etc., are used to reduce wear and to enhance hardness and toughness on mild steel through various nanocoating techniques. This paper deals with selection of suitable nanocoating material through AHP (Analytical hierarchal process) - a multi-criteria decision-making method.
Nano Coatings are nanotechnology-based coatings with very fine, thin layers of nano particles that are used to impart specific chemical and physical characteristics to a substrate surface .Nano coatings can easily be adopted for several uses .The future of the global nano coating market looks promising with opportunities in industries such as food preservation, metal coating, textile industries, etc., The market is further expected to reach a figure of US$ 13.5 Billion by 2023, exhibiting a CAGR (Compound Annual Growth Rate) of 20.6% during 2018-2023.Increasing demand for nanotechnology in emerging countries, including China, Japan and India, supports the growth of the nano - coating market in Asia Pacific. Increase in commercial and government investment in sectors such as automotive, infrastructure, shipping port projects and general manufacturing is growing rapidly Indian government is providing various start-up funds to encourage entrepreneur. This article deals with advance materials technology in the current era of Industry 4.0 which has huge scope for business opportunities in all kind of new innovators in nano coatings.
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