| 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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Sciti, D.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (24/24 displayed)
- 2024Determination of short carbon fiber orientation in zirconium diboride ceramic matrix compositescitations
- 2023Processing and testing of UHTCMCs for aerospace applications
- 2021Insight into microstructure and flexural strength of ultra-high temperature ceramics enriched SICARBONTM compositecitations
- 2021Significant improvement of the self-protection capability of ultra-high temperature ceramic matrix compositescitations
- 2021Fabrication and characterization of UHTCMCs
- 2021Properties of large scale ultra-high temperature ceramic matrix composites made by filament winding and spark plasma sinteringcitations
- 2021Microstructural and optical properties of MgAl2O4 spinel: Effects of mechanical activation, Y2O3 and graphene additionscitations
- 2021Spectral emittance of ceramics for high temperature solar receiverscitations
- 2021Effect of PAN-based and pitch-based carbon fibres on microstructure and properties of continuous Cf/ZrB2-SiC UHTCMCscitations
- 2020Development of UHTCMCs via water based ZrB2 powder slurry infiltration and polymer infiltration and pyrolysiscitations
- 2020Reactive melt infiltration of carbon fibre reinforced ZrB2/B composites with Zr2Cucitations
- 2020Formation of high entropy metal diborides using arc-melting and combinatorial approach to study quinary and quaternary solid solutionscitations
- 2020Influence of Y2O3 addition on the mechanical and oxidation behaviour of carbon fibre reinforced ZrB2/SiC compositescitations
- 2019Toughening effect of non-periodic fiber distribution on crack propagation energy of UHTC compositescitations
- 2018Impact of residual stress on thermal damage accumulation, and Young's modulus of fiber-reinforced ultra-high temperature ceramicscitations
- 2016Bulk monolithic zirconium and tantalum diborides by reactive and non-reactive spark plasma sinteringcitations
- 2014Emissivity, catalycity and microstructural characterization of ZrB2–SiCfiber based UHTC at high temperature in a non-equilibrium air plasma flowcitations
- 2008Spark plasma sintering and hot pressing of ZrB2–MoSi2 ultra-high-temperature ceramicscitations
- 2007Effects of powder processing on colloidal and microstructural characteristics of Beta-SiC powderscitations
- 2007Nanoindentation characterization of SiC-based ceramicscitations
- 2005Processing and characterization of liquid phase sintered silicon carbide
- 2005Short-term oxidation of a ternary composite in the system AlN–SiC–ZrB2citations
- 2004SiC Nano-materials produced through Liquid Phase Sintering
- 2004Microstructure design of liquid phase sintered silicon carbide in function of the powders characteristicscitations
Places of action
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article
Emissivity, catalycity and microstructural characterization of ZrB2–SiCfiber based UHTC at high temperature in a non-equilibrium air plasma flow
Abstract
ZrB2-based Ultra-High Temperature Ceramics (UHTC) could be used at temperatures above 2000 K, a typical limit of most structural ceramics such as SiC-coated C/C composites. In particular, UHTC are candidate materials for thermal protection systems (TPS) for the new sharp-shaped hypersonic re-entry vehicles. Among the open points of research on UHTC materials is the characterization of surface properties like emissivity and catalycity in the high temperature range. High emissivity and low surface catalycity towards the exothermal recombination of oxygen atoms will improve the material performance in re-entry conditions by reducing temperature gradients and thermal stresses.In this paper are presented and discussed the experimental results of emissivity and catalycity of two different UHTC materials based upon the ZrB2–SiCfiber composition with different sintering additives (Si3N4 or ZrSi2). Microstructural characterization by SEM, XRD and XPS have shown oxidation-induced surface modifications with oxide layers composed of silica with trace amounts of boron oxide and zirconia if the maximum reached temperature is lower than about 1800 K and only zirconia for higher temperatures. The differences in the oxide layer composition may account for the different thermal radiative properties and catalytic behavior.