| Téléchargement | - Voir le manuscrit accepté : Cracking Behaviour of an Air-Plasma-Sprayed Thermal Barrier Coating (PDF, 1.9 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.1115/GT2009-59135 |
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| Auteur | Rechercher : Chen, W. R.1; Rechercher : Wu, X.1; Rechercher : Marple, B. R.2 |
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| Affiliation | - Conseil national de recherches du Canada. Institut de recherche aérospatiale du CNRC
- Conseil national de recherches du Canada. Institut des matériaux industriels du CNRC
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| Format | Texte, Article |
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| Conférence | 2009 ASME Turbo Expo : Power for Land, Sea, and Air (GT2009), Orlando, Florida, USA, June 8-12, 2009 |
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| Sujet | thermal barrier coating; thermal cycling; crack propagation |
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| Résumé | The degradation of a thermal barrier coating (TBC) system is dominated by the formation and growth of a thermally grown oxide (TGO) layer between the ceramic topcoat and metallic bond coat, leading to a separation near the ceramic/bond coat interface during service. Crack propagation in a thermally sprayed TBC normally proceeds via the opening and growth of pre-existing discontinuities in the ceramic layer near the ceramic/bond coat interface region assisted by cracking associated with the evolution of the TGO. The combined effect of these degradation processes results in premature TBC failure. In the present study, TGO growth and cracking behaviours were investigated under cyclic oxidation conditions with different cycle frequencies. The results showed a likely relationship between the maximum crack length and TGO thickness, suggesting that the establishment of an empirical formula may be possible to serve as the basis for a TBC life prediction model. |
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| Date de publication | 2009-06-08 |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Non |
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| Numéro du CNRC | SMPL-2008-0130
NRCC 52409 |
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| Numéro NPARC | 18423905 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 4f4aa173-91a8-4095-8b4f-2c0c6299a218 |
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| Enregistrement créé | 2011-10-22 |
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| Enregistrement modifié | 2020-04-16 |
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