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International Heat Transfer Conference 13

ISBN Druckformat: 1-56700-226-9 (CD)
ISBN Online: 1-56700-225-0

MODELLING AND NUMERICAL SIMULATION OF HEAT TRANSFER PHENOMENA IN THE SELF-INDUCED ION PLATING PROCESS (SIIP)

DOI: 10.1615/IHTC13.p13.60
page 9

A. Contino
Faculty of Engineering - Thermal Engng. & Combustion Lab., Mons, Belgium

Veronique Feldheim
Thermal Engineering Laboratory, Faculte Polytechnique de Mons, Mons, Belgium

Paul Lybaert
Thermal Engineering Laboratory, Faculte Polytechnique de Mons, Mons, Belgium

B. Deweer
Arcelor Research Liège , Liège, Belgium

H. Cornil
Arcelor Research Liège , Liège, Belgium

Abstrakt

The present communication deals with the numerical simulation of heat transfer phenomena in a new physical vapour deposition process called self-induced ion plating (SIIP). SIIP has been developed in order to produce continuous coating of flat products in the steel industry. This coating process can be defined as the evaporation of a molten metallic target due to ions bombardment of a magnetron sputtering system. The thickness coating profile deposited on the flat substrate depends strongly on the target surface temperature field. So it seems essential to model heat transfer in the SIIP. The thermal phenomena taken into account in the SIIP heat transfer model are: the high energy argon ions bombardment of the target surface, the heat loss at the target surface due to the metal evaporation, the heat exchange by conduction, the radiative heat transfer and the convection heat exchange (free, Marangoni and electromagnetic convection) due to liquid target motion. Heat exchanges (conduction-convection-radiation) and velocity field are simultaneously computed using finite element software Comsol 3.2® . The Marangoni effect is of major importance in the SIIP. In fact it makes uniform the temperature field in the target. Thanks to the target surface temperature field and using the evaporation theory, we can compute the coating profile on the steel substrate. The computational results achieved are compared with measurements and show that our results are lower than measurements. We conclude that the SIIP model will have to be improved in the future.

IHTC-13 Digital Library

Measurement of fluid temperature with an arrangement of three thermocouples FLOW BOILING OF A HIGHLY VISCOUS POLYMER SOLUTION