| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Guipont, Vincent
Mines Paris - PSL
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2024Thermal Barrier Coatings in burner rig experiment analyzed through LAser Shock for DAmage Monitoring (LASDAM) methodcitations
- 2023Driving forces in thermal barrier coatings blisteringcitations
- 2022Investigation of the deformation behavior of agglomerated ceramic powders by cold spray
- 2022Assessment of agglomerated ceramic powders under impact by cold spraying
- 2022Assessment of agglomerated ceramic powders under impact by cold spraying
- 2019Development of Environmental Barrier Coatings on Ceramic Matric Composites assisted by LASAT (Laser Shock Adhesion Test)
- 2019Laser Shock Adhesion Test (LASAT) Applied to Bioceramic Coatings Involving Two-Dimensional Shock Wave Propagation
- 2017Cold spray coating of submicronic ceramic particles on poly(vinyl alcohol) in dry and hydrogel statescitations
- 2017Study of the interface strength and residual stresses within plasma sprayed alumina coatings involving LASAT (Laser Shock Adhesion Test)
- 2016Cold spray of agglomerated submicronic hydroxyapatite powders for biomedical applications
- 2015Microstructure and tribological behavior of copper and composite copper+alumina cold sprayed coatings for various alumina contentscitations
- 2014Residual Stress Analysis of Laser-Drilled Thermal Barrier Coatings Involving Various Bond Coatscitations
- 2012B4C/Ni composite coatings prepared by cold spray of blended or CVD-coated powderscitations
- 2012Metallization of a polymer using cold spray : application to aluminum coating of polyamide 66
- 2012Study of delamination induced by laser drilling of thermally sprayed TBC interfaces
- 2012Damage study of cold-sprayed composite materials for application to electrical contactscitations
- 2012Interconnected porosity modification of plasma sprayed alumina coating using excimer laser surface treatment
- 2012Lifetime of cold-sprayed electrical contactscitations
- 2011Laser-induced damage in cold-sprayed composite coatingscitations
- 2011The influence of the substrate on the deposition of cold sprayed titanium : an experimental and numerical studycitations
- 2010Structural and mechanical properties of titanium oxide thin films for biomedical applicationcitations
- 2010Laser Shock Adhesion Test (LASAT) of electron beam physical vapor deposited thermal barrier coatings (EB-PVD TBCs)citations
- 2009Microstructural study of copper and copper/alumina composite coatings produced by cold spray processcitations
- 2008Two-dimensional (2D) and three dimensional (3D) analyses of plasma sprayed alumina microstructures for finite-element simulation of Young's moduluscitations
- 2008Study of the porosity in plasma-sprayed alumina through an innovative three-dimensional simulation of the coating buildupcitations
- 2007A composite approach to Al2O3 based plasma-sprayed coatings
- 2006A composite approach to Al2O3 based plasma-sprayed coatings
- 2005The laser shock adhesion test (LASAT) for production control of thermally sprayed ceramic coatings
- 2004Process-microstructure-property relationships in controlled atmosphere plasma spraying of ceramicscitations
Places of action
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document
A composite approach to Al2O3 based plasma-sprayed coatings
Abstract
Thermally-sprayed ceramic coatings such as plasma-sprayed alumina show a composite microstructure actually due to the presence of defects such as pores, inter-lamellar and intralamellar cracks. These 2nd phase-typed features influence the mechanical behavior and electrical insulation of the coating dramatically. In this study, a composite approach to the microstructure of plasma-sprayed alumina was developed for the optimising of component properties such as electrical gaps used in the oil industry. This approach consisted of a Finite Element Analysis (FEA) of thermo-mechanical and electrical properties from simulated microstructures. Series of composite microstructures were tested, i.e that of air plasma-sprayed (APS) alumina basically plus those obtained by addition of glass or resin using co-spraying and impregnation respectively. Various degrees of porosity and cracks could be obtained from different spraying conditions and by subsequent laser surface remelting. Every composite microstructure was studied using quantitative image analysis of series of SEM cross-sections. Electrochemical Impedance Spectroscopy (EIS) in NaCl solution was also performed to characterize the level of connected pores and the resulting electrical insulating properties. From experiments, a Finite Element Model (FEM) based on the actual microstructure was developed. The latter was simulated with involving of all significant features, such as phase distribution, porosity and defects. This simulation was developed to optimize the composite microstructure to meet industrial applications.