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Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/1447

Title: Characterisation of Redmud Coatings Prepared by Plasma Spraying
Authors: Satapathy, Alok
Mishra, S C
Sreekumar, K P
Ananthapadmanabhan, P V
Keywords: Plasma Spraying
Redmud
Issue Date: 2004
Citation: International Conference on Advances in Surface Treatment: Research & Applications (ASTRA), Society for Advancement of Heat Treatment & Surface Engineering (SAHTSE). c/o ARCI. Hyderabad. India, 2004, Page. 541-544
Abstract: Plasma Spraying is a surface modification technique that combines particle melting, rapid solidification and consolidation in a single process. But as high cost of spray grade powders limits the adoption of this technique, exploring newer and cheaper materials suitable for plasma spray coating has drawn a lot of attention. This work reports an attempt to spray coat redmud (the waste generated in alumina producing plants) on different metal substrates. Plasma sprayed coatings of redmud have been developed at different operating power levels of the plasma gun on aluminium and copper substrates. Coating adhesion strength and deposition efficiency were studied at various operating conditions. Characterisation of the coatings was performed using micro hardness measurement and scanning electron microscopy (SEM). It was observed that the operating power appreciably influences the coating adhesion strength and coating thickness. Coatings deposited at very low and very high power levels ...
Description: Copyright Belongs to proceeding Publisher
URI: http://hdl.handle.net/2080/1447
Appears in Collections:Conference Papers

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