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Thermal effect on polyethyleneterephtalate (PET) from the impingement of a plasma-sprayed aluminium particle

Published online by Cambridge University Press:  25 October 2002

H. Hubert ,
F. Blein ,
J. Blot  and
M. Jeandin
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Abstract

The observation and Raman analysis of the surface of a PET polymer after the impact of an aluminium particle, combined with thermal modelling, have shown the presence of a zone with modified crystallization. This heat affected zone, with a thickness of a few microns, has different shapes depending on the geometry of the splat particle which is at its origin. This is the sign of a sharp temperature increase followed by a very rapid cooling. As a result, the proposition of crystallized phase is gradually decreased, and an amorphous phase is formed in a thin layer close to the surface. These results have been used to develop a protective plasma spraying technique for the coating of organic parts.

Type
Research Article
Information
Metallurgical Research & Technology , Volume 97 , Issue 12 , December 2000 , pp. 1519 - 1524
Copyright
© La Revue de Métallurgie, 2000

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