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| Title: | Plasma Spray Coating of Red Mud on Metals |
| Authors: | Mishra, S C
Satapathy, Alok
Behera, R K
Dhar, R K
Sreekumar, K P
Padmanabhan, P V A |
| Keywords: | plasma coating
red mud utilization
ceramic coating |
| Issue Date: | 2002 |
| Publisher: | BARC |
| Citation: | Proceedings of the International Symposium on Power Beam Applications in Meterials Processing Sep 25-29, 2002, BARC, Mumbai, P 709-712 |
| Abstract: | Red mud, the gangue produced during alumina extraction, has become a major issue for
disposal. In recent years, trials are made/in progress for utilization of this waste/byproduct
in some meaningful applications. In the present investigation, efforts are made to use red
mud for developing plasma spray coatings (ceramic/cermet) on metal substrates. The raw
material used in this study was collected from NALCO, Damonjodi, Orissa. The red mud
was sieved for selection of particle size and an average size of 100-150 micron was found
to be suitable for spraying purpose. Thermal spray coatings are deposited on various metal
substrates viz. S.S., M.S., Cu & Al at different operating power levels (between 6 to 17.5 kW)
of the plasma torch. The mechanical aspect such as coating adherence strength & hardness
are measured. The maximum adherence strength of ~8 MPa is noted for the coating deposited
on Cu substrate. The surface & interface morphology was studied through SEM. It is found
th... |
| Description: | Copyright for this article belongs to the publisher of the proceedings |
| URI: | http://hdl.handle.net/2080/307 |
| Appears in Collections: | Conference Papers
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| Alok PBAMP.pdf | | 1207Kb | Adobe PDF | View/Open |
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