Journal
SURFACE & COATINGS TECHNOLOGY
Volume 202, Issue 18, Pages 4465-4469Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.surfcoat.2008.04.028
Keywords
modeling; thermal plasma; plasma jet; particle; transient; 3-D simulation
Ask authors/readers for more resources
Due to the importance of the thermal and kinetic particle states at impact when generating a coating, numerical simulations of particle treatment in a plasma flow are continuously carried out in order to predict the particle behavior. The first goal is to correctly reproduce the plasma outflow in which the particles are introduced. This has been explored with a simplified model, the so-called heating volume model, to simulate industrial runs. Zirconia particles have been introduced in the simulated plasma flow and their melting state, velocity and trajectory have been compared with experimental measurements from specific in-flight-particle-capture and DPV 2000 devices. These comparisons highlight weak delays that depend on the particle size. This could be due, partially, to the particle heating assumptions (beat conduction within the particle) and to a poor knowledge of the thermal conductivity of liquid zirconia. (C) 2008 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available