| Téléchargement | - Voir le manuscrit accepté : Photographing impact of molten molybdenum particles in a plasma spray (PDF, 744 Kio)
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| DOI | Trouver le DOI : https://doi.org/10.1361/105996305X59422 |
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| Auteur | Rechercher : Mehdizadeh, N. Z.1; Rechercher : Lamontagne, M.1; Rechercher : Moreau, C.; Rechercher : Chandra, S.; Rechercher : Mostaghimi, J. |
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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 | droplet; particle impact; plasma spray; splashing; splat |
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| Résumé | Plasma-sprayed molten molybdenum particles (40 μm in diameter) were photographed impinging at high velocity (140 m/s) on a glass substrate at room temperature. An optical sensor detected thermal radiation emitted by a droplet as it approached the substrate and activated a time delay unit. After a selected time interval, an Nd:YAG laser was triggered, emitting a 5 ns pulse that provided illumination for a chargecoupled device (CCD) camera to photograph the impacting droplet through a long-range microscope. By varying the delay before pulsing the laser, different stages of droplet deformation were recorded. Impacting droplets spread into a thin circular film that ruptured and broke into small fragments. An optical detector recording thermal radiation from the impacting droplet gave a signal that increased as the droplet spread out, reached a maximum when the liquid film began to rupture, and decreased as portions of the droplet recoiled because of surface tension and then flew out of view of the photodetector. |
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| Date de publication | 2005-09-01 |
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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 47939 |
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| Numéro NPARC | 15955051 |
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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 | 92b075be-0e2c-4a6c-bfce-8f3353a4ac48 |
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| Enregistrement créé | 2010-08-17 |
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| Enregistrement modifié | 2020-04-07 |
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