| Téléchargement | - Voir le manuscrit accepté : Mullite and mullite/ZrO₂-7wt%Y₂O₃ powders for thermal spraying of environmental barrier coatings (PDF, 928 Kio)
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| DOI | Trouver le DOI : https://doi.org/10.1007/s11666-009-9420-4 |
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| Auteur | Rechercher : Garcia, E.; Rechercher : Mesquita-Guimaraes, J.; Rechercher : Miranzo, P.; Rechercher : Osendi, M. I.; Rechercher : Wang, Y.1; Rechercher : Lima, R. S.1; Rechercher : Moreau, C.1 |
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| Affiliation | - Conseil national de recherches du Canada. Institut des matériaux industriels du CNRC
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| Format | Texte, Article |
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| Sujet | Crystallinity; environmental barrier coatings; flame spheroidization; mullite; plasma spray; powder feedstock; spray drying; zirconia |
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| Résumé | Mullite and mullite/ZrO₂-7wt.%Y₂O₃ coatings could be thought among the main protective layers for environment barrier coatings (EBCs) to protect Si-based substrates in future gas turbine engines. Considering that feedstock of the compound powder is not commercially available, two powder processing routes Spray Drying (SD) and Flame Spheroidization (FS) were implemented for both types of powders. For each method the particle size, the morphology, and microstructure of the powder particles was determined. In addition, the effect of the heat treatment on the powder crystallinity and microstructure of FS powders was also investigated. To evaluate their suitability as feedstock materials, the powders were plasma sprayed and their in-flight particle characteristics monitored for coatings production. The powder morphology was correlated to the in-flight particle characteristics and splat morphology to gain insight about into the influence of powder characteristics on the coating formation. |
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| Date de publication | 2010-01-01 |
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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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| Numéro du CNRC | NRCC 52414 |
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| Numéro NPARC | 18398983 |
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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 | 90e7ef61-ab19-4d91-adaa-db7464697207 |
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| Enregistrement créé | 2011-08-16 |
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| Enregistrement modifié | 2020-04-17 |
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