| 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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Lours, Philippe
IMT Mines Albi
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (55/55 displayed)
- 2023Stress corrosion cracking behavior of austenitic stainless steel 316L produced using laser-based powder bed fusioncitations
- 2022Correlation between microstructure heterogeneity and multi-scale mechanical behavior of hybrid LPBF-DED Inconel 625citations
- 2021Thermal shock resistance of a NiCrAlY-coated alloy 625 system produced by laser powder bed fusioncitations
- 2020Heat treatments design for superior high-temperature tensile properties of alloy 625 produced by Selective Laser Meltingcitations
- 2020A novel approach to the production of NiCrAlY bond coat onto IN625 superalloy by selective laser meltingcitations
- 2020High temperature oxidation of NiCrAlY coated Alloy 625 manufactured by selective laser meltingcitations
- 2018On the thermal sensitivity and resolution of a YSZ:Er 3+ /YSZ:Eu 3+ fluorescent thermal history sensorcitations
- 2018On the thermal sensitivity and resolution of a YSZ:Er 3+ /YSZ:Eu 3+ fluorescent thermal history sensorcitations
- 2017Characterization of the mechanical properties of thermal barrier coatings by 3 points bending tests and modified small punch testscitations
- 2017Mechanical properties of yttria-stabilised-zirconia for thermal barrier coating systems : effects of testing procedure and thermal aging
- 2017Novel erbia-yttria co-doped zirconia fluorescent thermal history sensorcitations
- 2017Novel erbia-yttria co-doped zirconia fluorescent thermal history sensorcitations
- 2015Quantitative assessment of the interfacial roughness in multi-layered materials using image analysis: Application to oxidation in ceramic-based materialscitations
- 2015Quantitative assessment of the interfacial roughness in multi-layered materials using image analysis: Application to oxidation in ceramic-based materialscitations
- 2014Optimized sol–gel thermal barrier coatings for long-term cyclic oxidation lifecitations
- 2014Optimized sol–gel thermal barrier coatings for long-term cyclic oxidation lifecitations
- 2014Feasibility of luminescent multilayer sol-gel thermal barrier coating manufacturing for future applications in through-thickness temperature gradient sensingcitations
- 2014Microstructural control of new generation thermal barrier coatings via a sol-gel route : cyclic oxidation behaviour
- 2013Analysis of weld-cracking and improvement of the weld-repair process of superplastic forming toolscitations
- 2012Superplastic forming of AZ31 magnesium alloy with controlled microstructurecitations
- 2012Superplastic forming of AZ31 magnesium alloy with controlled microstructurecitations
- 2012Experimental Study of the Deformation Mechanisms in Textured Alpha-titanium Alloy Sheets
- 2011Experimental Study of the Deformation Mechanisms in Textured Alpha-titanium Alloy Sheets
- 2011Processes and equipment for superplastic forming of metalscitations
- 2011Influence of heat treatment on the fracture toughness and crack propagation in 5% Cr martensitic steelcitations
- 2010Heat Resistant Ni-Cr-Fe Steels for Superplastic Forming Dies: From Material Microstructure to Die Designcitations
- 2010Oxidation and spallation of FeCrAl alloys and thermal barrier coatings: in situ investigation under controlled temperature gradientcitations
- 2010Oxidation and spallation of FeCrAl alloys and thermal barrier coatings: in situ investigation under controlled temperature gradientcitations
- 2010Effect of the LCF loading cycle characteristics on the fatigue life of inconel 718 at high temperature
- 2010Advances in the field of new smart thermal barrier coatings
- 2010Advances in the field of new smart thermal barrier coatingscitations
- 2009A microstructural and low-cycle fatigue investigation of weld-repaired heat-resistant cast steelscitations
- 2009Study and prevention of cracking during weld-repair of heat-resistant cast steelscitations
- 2009A microstructural and low-cyle fatigue investigation of weld-repaired heat-resistant cast steelscitations
- 2008Direct obervations and analysis of the spallation of alumina scales grown on PM2000 alloycitations
- 2008Direct obervations and analysis of the spallation of alumina scales grown on PM2000 alloycitations
- 2008TOWARDS SUPERPLASTIC FORMING OF AZ31 MAGNESIUM ALLOY WITH CONTROLLED MICROSTRUCTURE
- 2008TOWARDS SUPERPLASTIC FORMING OF AZ31 MAGNESIUM ALLOY WITH CONTROLLED MICROSTRUCTURE
- 2008Method for predicting risk of cracking during weld repair of heat resistant cast steelscitations
- 2008Evolution of microstructure and impact-strength energy in thermally and thermomechanically aged 15-5 PH
- 2005Thermomechanical stress analysis of superplastic forming toolcitations
- 2005Influence of the mechanical properties of filler materials on weld repair quality of SPF tools
- 2004Isothermal oxidation behaviour of a hot-work tool steelcitations
- 2004Quantitative TEM study of the precipitation microstructure in aluminium alloy Al(MgSiCu) 6056 T6citations
- 2004Experimental and numerical investigation of the weld repair of superplastic forming diescitations
- 2004Rapid tooling for injection moulding processcitations
- 2004Damages induced by thermomechanical cycles in superplastic forming toolscitations
- 2003In situ ESEM investigations of the oxide growth on hot work tools steel: effect of the water vapourcitations
- 2003XRD investigations on the oxides grown on hot work tool steels in H2O-containing atmospheres
- 2002Oxidation and oxide spallation of heat resistant cast steels for superplastic forming diescitations
- 2001Surface and image analysis of oxides grown and spalled on heat resistant cast steels exposed to thermal cyclescitations
- 2001Surface and image analysis of oxides grown and spalled on heat resistant cast steels exposed to thermal cyclescitations
- 2001Investigation of the spallation of oxides grown on thermally cycled heat resistant cast steelscitations
- 2001Performances of metallic and ceramic tools for superplastic forming
- 2000Investigation of the spallation of oxides grown on thermally cycled heat resistant cast steelscitations
Places of action
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conferencepaper
Microstructural control of new generation thermal barrier coatings via a sol-gel route : cyclic oxidation behaviour
Abstract
International audience ; For several years, turbojet engineers have been searching to increase the efficiency of engines in order to enhance their performances. This can be achieved via the increase of engine service temperature which may dramatically damage the materials used, namely for turbine blades made of single crystal nickel based superalloys. To protect and extend lifetime of those materials, they are generally coated with thermal barriers either deposited using the so-called EB-PVD or APS process, respectively resulting in typically directional columnar and lamellar microstructures. In this study, an alternative process is proposed. It consists to elaborate thermal barriers by sol-gel route, a room temperature method based on soft chemistry, object of several research investigations, showing a real interest for the synthesis of materials with controlled morphology and composition [1,2]. Relative to elaboration step, an initial sequence consists in coating the superalloy with an yttria stabilised zirconia composite sol by dip-coating at controlled speed. This allows to obtain a homogeneous coating with an equi-distributed porosity. Two types of commercial dispersants have been investigated for the implementation in the composite sol, Beycostat C213 and the PVP whose active chemical groups are similar but formulations and physicochemical characteristics are different. After adjustements of the parameters of both synthesis sintering heat treatment, ceramic coating shows a satisfactorily controlled microstructure. According to the nature of the dispersant incorporated, it is shown that the width of micro-cracks of ceramics varies, this controlled micro-cracking being nevertheless favourable for accommodating thermomechanical constraints exerted on the TBC during cyclic oxidation. The next step includes the reinforcement of the micro-crack network. Indeed, filling grooves with additional material has the virtue to strengthen the TBC and ultimately increase the lifetime of the system. The shaping technique ...