STATE OF ART: PLASMA SPRAYED NANOSTRUCTURED COATINGS: A REVIEW
Vikas Chawla; Buta Singh Sidhu; D. Puri
Materials Forum
abstract:This review is based essentially on the results in the field of synthesis and characterization of plasma sprayed nanostructured coatings. Nanostructured ceramic coatings produced by plasma spray process are being developed for a wide variety of applications that require resistance to wear, erosion, cracking and spallation. It is anticipated that, if properly deposited, nanostructured ceramic coatings could also provide improved properties for variety of applications, including wear resistance and thermal barrier coatings. These results clearly demonstrate that the significant improvement in coating performance can be achieved by utilizing proper nanostructured coatings. Plasma sprayed nanostructured coatings shows improvement of resistance to wear, erosion, corrosion and mechanical properties are also improved as compare to their conventional counterparts. The purpose of this paper is to review: (a) the synthesis and characterization of nanostructured feedstock powders; (b) the agglomeration of these powders for use in coatings; (c) the processing of nanostructured plasma spray conditions.
keywords:Plasma spraying, nanostructured coatings, Feedstock material, Spallation, Erosion, Wear resistance, Corrosion resistance, Ball milling
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