| DOI | Trouver le DOI : https://doi.org/10.1016/j.ceramint.2019.09.258 |
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| Auteur | Rechercher : Xiao, Bingjie; Rechercher : Robertson, Taylor1; Rechercher : Huang, Xiao; Rechercher : Kearsey, Rick1 |
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| Affiliation | - Conseil national de recherches du Canada. Aérospatiale
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| Format | Texte, Article |
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| Sujet | thermal barrier coating; crack numerical density; fracture; gamma statistics |
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| Résumé | This study examined the application of crack numerical density theory (CND) to determine the damage state of a thermal barrier coating (TBC) produced using the suspension plasma spray (SPS) technique. A TBC consisting of a partially stabilized zirconia topcoat was deposited upon an APS NiCoCrAl bondcoat and INCONEL 625 substrate. The TBC was exposed to an isothermal temperature of 1080 °C for a duration of up to 1300 h with specimens removed for examination at, 400 h, 800 h and 1300 h. Material properties after each exposure were determined and utilized to fit a CND model to predict the crack distribution within the topcoat following isothermal exposure. Probabilities of cracks developing within the topcoat that can bridge asperities (0.01% at 400 h, 2% at 800 h, and 11% at 1300 h) were determined indicating that CND may be a useful tool for predicting lifetimes of SPS-TBCs. |
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| Date de publication | 2019-09-27 |
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| Maison d’édition | Elsevier |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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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 | 28df6ba1-fb3c-4b85-84df-71207c229158 |
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| Enregistrement créé | 2020-07-08 |
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| Enregistrement modifié | 2021-09-17 |
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