Early Stages of High Temperature Cyclic Oxidation of an Electrodeposited Ceria Coating on Nickel Superalloys Under Water-drop Tests

Brossard, M.; Bouchaud, B.; Bonnet, Gilles; Rannou, B.; Pedraza, F.

doi:10.1007/s11085-013-9426-7

Cited by 7 publications

(2 citation statements)

References 27 publications

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“…Water drops were systematically added onto aluminaforming CeO 2 based coatings during the cold stage (T b 80°C) of cyclic oxidation [13]. This aimed at simulating repeated condensation of water released by kerosene combustion or relative humidity of air and rain after engine operation.…”

Section: Introductionmentioning

confidence: 99%

Failure mechanism of an out-of-pack nickel aluminide coating cyclically oxidised at 1100 °C with water accelerated cooling

Brossard

Pedraza

Craig

et al. 2015

Surface and Coatings Technology

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Section: Introductionmentioning

confidence: 99%

Failure mechanism of an out-of-pack nickel aluminide coating cyclically oxidised at 1100 °C with water accelerated cooling

Brossard

Pedraza

Craig

et al. 2015

Surface and Coatings Technology

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“…The perovskites improved the adherence of the oxide scale formed and blocked diffusion of the ionic species, hence resulting in overall improved oxidation resistance [24,25]. In some of our previous studies, the formation of CeAlO3 at the alumina/ceria interface was also considered to contribute to the enhanced adherence of the oxide scale of electrolytic CeO2 coatings on Ni-based superalloy substrates under isothermal and cyclic conditions [26][27][28] even after the application of water drops to embrittle the oxide/coating interface [29,30]. Nevertheless, despite favourable thermodynamic conditions, this was not clearly demonstrated experimentally.…”

mentioning

confidence: 99%

Solid state interfacial reactions in a ceria-coated Ni-based superalloy

Pedraza

Bouchaud

2020

Surface and Coatings Technology

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Perovskite type phases are known to improve the adherence of protective oxide scales grown onto chromia-and alumina-forming alloys and coatings. The present study investigates the interfacial reactions occurring during the high temperature oxidation of a ceria coated Ni-based superalloy at 1100°C. The substrate firstly grew a duplex oxide scale with a NiAl2O4 spinel on top of an α-Al2O3 scale underneath the ceria coating. Increasing oxidation time led to the development of Al-rich and Ce-rich nanometric grains at the oxide scale/coating interface and to the progressive vanishing of the NiAl2O4 spinel. Micro-Raman analyses demonstrated the formation of cerium aluminate CeAlO3 by solid-state reaction between Al2O3 and CeO2 favoured by an Al supply coming from the substrate. The results are in line with the thermodynamic calculations.

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Enhanced superhydrophilicity and thermal stability of ITO surface with patterned ceria coatings

Xue

Peng

et al. 2015

Applied Surface Science

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Early Stages of High Temperature Cyclic Oxidation of an Electrodeposited Ceria Coating on Nickel Superalloys Under Water-drop Tests

Cited by 7 publications

References 27 publications

Failure mechanism of an out-of-pack nickel aluminide coating cyclically oxidised at 1100 °C with water accelerated cooling

Failure mechanism of an out-of-pack nickel aluminide coating cyclically oxidised at 1100 °C with water accelerated cooling

Solid state interfacial reactions in a ceria-coated Ni-based superalloy

Enhanced superhydrophilicity and thermal stability of ITO surface with patterned ceria coatings

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