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Thermo-mechanical modeling of the splat formation in plasma spray conditions

Abstract : The present study focuses on the modeling and simulation of the process of impact and solidification of a molten alumina particle onto a substrate under plasma spray conditions. It aims at a better understanding of the different mechanisms that govern the formation of a single splat resulting from the impact of a particle onto a substrate. The successive stacking of these splats leads to the coating formation. The main objective is to examine the influence of the nature of the substrate and its initial temperature on the formation of a splat. The model is based on the Navier-Stokes and energy equations coupled with the "Level Set" function which permits tracking of the interface between molten particle and surrounding air. These equations are solved by the finite element method using Comsol Multiphysics software. The effects of surface tension forces, wettability and thermal contact resistance are taken into account.
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https://hal.univ-lorraine.fr/hal-01593462
Contributor : Lermab Ul <>
Submitted on : Tuesday, September 26, 2017 - 11:59:47 AM
Last modification on : Tuesday, March 20, 2018 - 10:17:56 AM

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  • HAL Id : hal-01593462, version 1

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Soufiane Oukach, Mohammed El Ganaoui, H. Hamdi, Bernard Pateyron. Thermo-mechanical modeling of the splat formation in plasma spray conditions. Physical and Chemical News, Best Edition, 2013, pp.113-119. ⟨hal-01593462⟩

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