Journal article
3D predictions of thermally sprayed polymer splats: Modeling particle acceleration, heating and deformation on impact with a flat substrate
International journal of heat and mass transfer, v 49(19), pp 3285-3297
2006
Abstract
During thermal spray deposition, jets of high temperature and high velocity gases are used to melt and accelerate materials injected into the jet and propel them toward the surface to be coated. Upon impact at the surface, multiple hot particles deform, cool and consolidate to form a coating. Mathematical models have been developed to predict the particle transport and splatting on impact with a flat substrate during the High Velocity Oxy-Fuel (HVOF) combustion spraying of polymeric materials. The predicted shapes of deformed particles exhibited good qualitative agreement with experimentally observed splats including a characteristic “fried-egg” shape with large, nearly-hemispherical, core in the center of a thin disk. These shapes were formed by polymer particles having a low temperature, high viscosity core and a high temperature, low viscosity surface.
Metrics
Details
- Title
- 3D predictions of thermally sprayed polymer splats: Modeling particle acceleration, heating and deformation on impact with a flat substrate
- Creators
- Milan Ivosevic - Department of Materials Science and Engineering, Drexel University, PA 19104, USARichard A Cairncross - Department of Chemical and Biological Engineering, Drexel University, PA 19104, USARichard Knight - Department of Materials Science and Engineering, Drexel University, PA 19104, USA
- Publication Details
- International journal of heat and mass transfer, v 49(19), pp 3285-3297
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering; Chemical and Biological Engineering
- Web of Science ID
- WOS:000239442400001
- Scopus ID
- 2-s2.0-33745400522
- Other Identifier
- 991014877675204721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Engineering, Mechanical
- Mechanics
- Thermodynamics