We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
A Three-Dimensional Analysis of the Suspension Plasma Spray Impinging on a Flat Substrate.
- Authors
Jadidi, M.; Mousavi, M.; Moghtadernejad, S.; Dolatabadi, A.
- Abstract
Suspension feedstock in plasma spraying is an emerging process for producing coatings with enhanced characteristics. Sub-micron up to few micron-sized particles are suspended in a liquid and injected into the plasma plume. After suspension's breakup and evaporation, molten and semi-molten fine particles are deposited on a substrate. Particle conditions upon impact (i.e., trajectory, velocity, and temperature) as well as substrate location and shape have key influences on the adhesion and quality of the coatings. In the current study, a three-dimensional two-way coupled Eulerian-Lagrangian approach is used to model the plasma jet, droplet/particle trajectory, velocity, and temperature. To model the turbulence and the effect of substrate on the flow field, Reynolds Stress Model is used. In addition, Kelvin-Helmholtz Rayleigh-Taylor breakup model is employed to predict the secondary breakup of the suspension. The focus of this work is on the particles behavior near the substrate. Flat substrates placed at standoff distances ranging from 40 to 60 mm are modeled to provide detailed information on the coating particles upon impact using suspension plasma spraying.
- Subjects
METAL spraying; PARTICLE size distribution; EVAPORATION (Chemistry); ADHESION; TURBULENCE
- Publication
Journal of Thermal Spray Technology, 2015, Vol 24, Issue 1/2, p11
- ISSN
1059-9630
- Publication type
Article
- DOI
10.1007/s11666-014-0166-2