Experimental and simulation approach to plasma spray deposition of yttrium oxide

Autor:	B. Selvan, T.K. Thiyagarajan, Y. Chakravarthy, K P Sreekumar, A.K. Das, L.M. Gantayet, Kandasamy Ramachandran, P.V. Ananthapadmanabhan
Rok vydání:	2012
Předmět:	Thermal shock Materials science Scanning electron microscope Metallurgy Oxide chemistry.chemical_element Surfaces and Interfaces Yttrium Condensed Matter Physics Surfaces Coatings and Films symbols.namesake Solution precursor plasma spray chemistry.chemical_compound chemistry Materials Chemistry symbols Deposition (phase transition) Composite material Raman spectroscopy Thermal spraying
Zdroj:	Surface Engineering. 28:646-656
ISSN:	1743-2944 0267-0844
DOI:	10.1179/1743294412y.0000000019
Popis:	Plasma sprayed coatings of yttrium oxide, exhibiting good adhesion and thermal shock resistance, were developed on various substrates using thermal spray grade yttrium oxide powder developed in our laboratory. Numerical simulation of particle behaviour in the thermal plasma jet was combined with experimental method to develop the coatings. Phase structure and microstructural characterisation of the deposits were evaluated by X-ray diffraction, Raman spectroscopy and scanning electron microscopy. Deposition efficiencies and adhesion strength of the coatings deposited at different power levels could be well explained with the predictions provided by the model. The process was optimised using deposition efficiency as the response parameter.
Databáze:	OpenAIRE
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