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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
SJR: 0.137 SNIP: 0.341 CiteScore™: 0.43

ISSN Imprimir: 1093-3611
ISSN En Línea: 1940-4360

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

DOI: 10.1615/HighTempMatProc.v9.i1.70
pages 71-85

MODELING OF THE TIME-DEPENDENT PHENOMENA IN A DC PLASMA SPRAY PROCESS

E. Legros
Laboratoire Sciences des Procédés Céramiques et Traitements de Surface ENSIL, 16 Rue d'Atlantis, 87068 Limoges, France
G. Mariaux
Laboratoire Sciences des Procedes Ceramiques et de Traitements de Surface UMR CNRS 6638 University of Limoges 123 avenue Albert Thomas, 87060 LIMOGES - France
Armelle Vardelle
ENSIL, ESTER Technopole, 87068 Limoges - France

SINOPSIS

This study addresses the 3-D and time-dependent modeling of the plasma spray process. The model includes the conversion from electrical to thermal energy in the plasma-forming gas, multiple particle injection and buildup of the coating on a fixed substrate. It uses two sequential sub-systems. The first deals with the fluid and particulate phases and makes it possible to predict the time-distributions of particle velocity, temperature, molten state and size prior to impact on the substrate as well as the location of particles in the spray jet. The second predicts the shape and thickness of the coating from the calculated particle parameters at impact.


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