| Téléchargement | - Voir le manuscrit accepté : Laser-Ultrasonic Characterization of Thermal Spray Coatings (PDF, 715 Kio)
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| DOI | Trouver le DOI : https://doi.org/10.1063/1.1711723 |
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| Auteur | Rechercher : Bescond, C.1; Rechercher : Lima, R. S.1; Rechercher : Gilbert, A.1; Rechercher : Kruger, S. E.1; Rechercher : Levesque, D.1; Rechercher : Marple, B. R.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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| Conférence | Conference on Quantitative Nondestructive Evaluation (QNDE 2003), Green bay, WI, USA, July 27-Aug. 1, 2003, July 27-Aug. 1, 2003, Green bay, WI, USA |
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| Résumé | The laser-ultrasonic technique uses lasers to generate and detect ultrasound and present interesting possibilities for characterizing thermal spray coatings in a non-destructive manner. In this study, the thickness, density and elastic moduli of very uniform, dense and nearly isotropic TiO2 and WC-Co thermal spray coatings are evaluated by using laser generated surface Rayleigh waves and surface skimming longitudinal waves. The elastic properties of the layer are obtained via an inverse procedure based on the minimization of the difference between the measured and calculated Rayleigh wave dispersion curves. The results are compared to the values obtained with an optical microscope for the thickness and the Knoop indentation technique for the elastic modulus. The agreement between the techniques is found to be excellent and laser-ultrasonics appears to be very promising for characterizing such materials. In particular, coatings deposited at high temperature on parts of complex shape could be characterized in-situ where other methods cannot be applied. |
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| Date de publication | 2004-02-26 |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro du CNRC | NRCC 46801 |
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| Numéro NPARC | 18487261 |
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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 | d02eb1d0-4095-4ec1-9ff0-e75bb92a87a9 |
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| Enregistrement créé | 2011-10-11 |
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| Enregistrement modifié | 2020-04-17 |
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