6533b85cfe1ef96bd12bd38a
RESEARCH PRODUCT
Laser densification of organic coating: Effects of laser wavelength, operating parameters and substrate properties
Simone MatteïHanlin LiaoCamelia DemianCamelia DemianSophie CostilAdriana SovejaAdriana SovejaPierre Sallamandsubject
Materials sciencePOLYETHERETHERKETONE PEEKchemistry.chemical_element02 engineering and technologySubstrate (electronics)engineering.materialADHESIONFILMSlaw.inventionElectrophoretic deposition0203 mechanical engineeringCoatinglawAluminiumELECTROPHORETIC DEPOSITIONMaterials ChemistryPeekComposite materialAbsorption (electromagnetic radiation)PEEK COATINGSDRY SLIDING FRICTIONSurfaces and InterfacesGeneral ChemistryMECHANICAL-PROPERTIES[SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph]021001 nanoscience & nanotechnologyCondensed Matter PhysicsLaserSTAINLESS-STEELSurfaces Coatings and Films020303 mechanical engineering & transportschemistryCOMPOSITE COATINGSMelting pointengineering0210 nano-technologyBEHAVIORdescription
International audience; Mechanical bonding and interface behaviour play a key role for any materials deposited on different substrates. Usually, a post-spray heat treatment is required to improve the coating morphology and to enhance mechanical properties of thermal-sprayed polymeric coating. The effects of YAG, CO2 and diode laser radiations on as-sprayed PEEK coating deposited on stainless steel and aluminum substrates were investigated. The results revealed a good coating densification and interface behavior. A correlation between coating and substrate absorption coefficients, their thermophysical properties and laser operating parameters was shown. Besides, the finite element modeling based on IR temperature measurements during diode laser irradiation demonstrated that the densification of organic coating occurs above its melting point.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-04-01 |