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Proceedings Paper

Influence of plasma spraying process parameters on properties of the deposited Ni-Al coatings
Author(s): Sigitas Tamulevicius; Rytis Dargis; Pranas Valatkevicius; Kestutis Slapikas
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Paper Abstract

Plasma spraying technique was used for deposition of Al and Ni-Al coatings with special electrochemical characteristics. Influence of the plasma spraying process on characteristics of plasma stream and properties of the deposited coatings was investigated. Temperature field in the plasma torch, dependence of temperature of the probe placed in the plasma stream on the gas flux, pressure in the deposition chamber and arc discharge output power were measured experimentally. Surface morphology of th3 coatings by optical microscope and scanning electron microscope was investigated. It was found high dependence of the morphology on composition of the plasma gas. X-ray technique for investigation of chemical composition of the coatings was used. It was found that inter-diffusion of nickel and aluminum during deposition of the coatings takes part. This phenomenon influences chemical composition of the surface and electro-chemical characteristics of the coatings.

Paper Details

Date Published: 17 April 2001
PDF: 4 pages
Proc. SPIE 4413, International Conference on Solid State Crystals 2000: Epilayers and Heterostructures in Optoelectronics and Semiconductor Technology, (17 April 2001); doi: 10.1117/12.425469
Show Author Affiliations
Sigitas Tamulevicius, Kaunas Univ. of Technology (Lithuania)
Rytis Dargis, Kaunas Univ. of Technology (Lithuania)
Pranas Valatkevicius, Lithuanian Institute of Energetics (Lithuania)
Kestutis Slapikas, Kaunas Univ. of Technology (Lithuania)


Published in SPIE Proceedings Vol. 4413:
International Conference on Solid State Crystals 2000: Epilayers and Heterostructures in Optoelectronics and Semiconductor Technology
Jaroslaw Rutkowski; Jakub Wenus; Leszek Kubiak, Editor(s)

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