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Numerical study of semi-molten droplet impingement

Tabbara, H and Gu, S (2011) Numerical study of semi-molten droplet impingement Applied Physics A: Materials Science & Processing, 104. pp. 1011-1019.

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Abstract

Due to the low thermal conductivity of ceramics large temperature gradients are present through the powder particles during plasma spray deposition. As a result the particles often impinge at the substrate in a semi-molten form; which in turn substantially affects the final characteristics of the coating being formed. This study is dedicated to the novel modelling development and simulation of a semi-molten droplet impingement. The study examines the impingement process during impact, spreading and solidification of semi-molten zirconia. The simulation provides an insight to the heat transfer process during impact and solidification of a semi-molten powder particle and illustrates the freezing-induced break-up mechanism at the splat periphery.

Item Type: Article
Authors :
AuthorsEmailORCID
Tabbara, HUNSPECIFIEDUNSPECIFIED
Gu, SUNSPECIFIEDUNSPECIFIED
Date : 11 July 2011
Funders : EU FP7
Identification Number : https://doi.org/10.1007/s00339-011-6510-1
Depositing User : Symplectic Elements
Date Deposited : 28 Mar 2017 10:59
Last Modified : 28 Mar 2017 10:59
URI: http://epubs.surrey.ac.uk/id/eprint/810569

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