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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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Chen, Ying
University of Manchester
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (5/5 displayed)
- 2024An investigation into RESZ (RE = Yb, Er, Gd, Sm) materials for CMAS resistance in thermal barrier coatingscitations
- 2023Directly observing atomic-scale relaxations of a glass forming liquid using femtosecond X-ray photon correlation spectroscopycitations
- 2015GISAXS and TOF-GISANS studies on surface and depth morphology of self-organized TiO 2 nanotube arrays: model anode material in Li-ion batteriescitations
- 2013Substrate and bonding layer effects on performance of DLC and TiN biomedical coatings in Hank's solution under cyclic impact-sliding loadscitations
- 2008Recovery and Restructuring induced by Fission Energy Ions in High Burnup Nuclear Fuel
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article
An investigation into RESZ (RE = Yb, Er, Gd, Sm) materials for CMAS resistance in thermal barrier coatings
Abstract
The effects of rare earth dopants on the CMAS resistance of zirconia thermal barrier coating materials were systematically investigated using ceramic pellets and CMAS. Yb, Er, Gd and Sm elements were assessed as stabilising agents of zirconia at increasing concentrations for CMAS reactions at 1300 °C across timeframes of 1 to 60-minutes. Two distinct microstructures of the ceramic pellet –CMAS reaction layer were observed then characterised as a dense layer microstructure and a non-dense layer microstructure. The presence of each microstructure was dependent on the RE ionic radius and concentration. The thickness of the reaction layer and overall volume of precipitated reaction products increased with increasing RE ionic radius. Therefore, an optimal RE element would exhibit dense layer forming microstructure with the lowest overall infiltration depth. CMAS loading volume significantly impacted the rate of reaction product precipitation. The volume of apatite precipitate was inversely proportional to the CMAS loading quantity.