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Proceedings of CHT-08 ICHMT International Symposium on Advances in Computational Heat Transfer
May, 11-16, 2008, Marrakesh, Morocco

DOI: 10.1615/ICHMT.2008.CHT


ISBN Print: 978-1-56700-253-9

ISSN: 2578-5486

SIMPLIFIED 2D THERMO-MECHANICAL MODELING OF SPLAT FORMATION IN PLASMA SPRAYING PROCESSES

page 6
DOI: 10.1615/ICHMT.2008.CHT.1900
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ABSTRACT

The particles projected by arc plasma are generally of micrometric size (including in general between 10 and 100 μm ) in conventional projection and their impact velocity ranges from 50 to 350 m/s. characteristic times for the formation of a plate are about a microsecond: less than 5 μs for the duration of spreading of the particle melted with a solidification which can start before the end of the spreading stage and continues in general between 0.8 and 10 μm after the impact [1]. It is a question here of numerically studying the complex coupling by using a model which will be first validated in comparison with available results of particles spreading (large size and low impact velocity < 1 m/s).

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