Role of thermal spray in combating climate change

Abstract Thermal spraying is a scalable surface engineering technique used to add or restore functionality of solid by applying coating. Examples this include protection against wear, erosion, abrasion, and heat. In specific sense, thermal particularly deposit barrier coatings (TBCs) which finds use in transportation, power generation automotive sector. As being technique, much like other coating techniques can avoid the excessive bulk materials turn offers longevity life component, so it already contributes reduction global warming virtue avoiding scarce improving fuel efficiency. terms its contribution cause warming, stands sharp contrast energy-intensive processes such as melting, casting, extrusion welding. With rise additive manufacturing, possible spray complement that process many ways “cold manufacturing” (CSAM) gaining popularity. The relies on using selective types gases—hydrogen one them few metals/alloys are now classed critical raw due supply risk register. Efforts consider recycling reuse find alternatives these very timely continue drawing advantage relatively green technique. particular, energy initiatives drive develop storage battery technologies could challenge hydrogen gas rare earth elements. This underlines research development need for alternate address issue climate change major focal point COP 26 Summit at Glasgow 2021. combination digital will reduce gas, powder consumption, make manufacturing even greener.