| DOI | Trouver le DOI : https://doi.org/10.1016/B978-0-08-036448-3.50062-1 |
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| Auteur | Rechercher : Choi, H.1; Rechercher : Parent, L.1; Rechercher : Dallaire, S.1; Rechercher : Cole, K.1; Rechercher : Noël, D.1 |
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| Affiliation | - Conseil national de recherches du Canada
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| Format | Texte, Chapitre de livre |
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| Conférence | International Symposium on the Production and Processing of Fine Particles, August 28–31, 1988, Montreal, Quebec, Canada |
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| Résumé | The needs of high temperature structural ceramics have rekindled great interest in developing methods for producing high-purity, ultrafine powders. Among different ways of fine powder preparation, gas phase synthesis in a thermal plasma is one of the most important techniques. A continuous thermal plasma process has been developed to produce ultrafine SiC powders by gas phase synthesis from silicon tetrachloride and methane in an argon and argon + hydrogen plasma jet. The reaction conditions to control the physical and chemical properties of the powders have been investigated. Bulk properties of SiC powders were determined by X-ray diffraction and Fourier transform infrared spectroscopy. Surface characteristics and particle size were examined by scanning electron microscopy. It is found that the reaction conditions have significant effects on the size and composition of particles. The particles, 0.1–0.5 μm in size, can be either completely amorphous or crystalline β-SiC. The presence of Si-O bonds is detected in all powders and the amount of oxygen strongly depends on the operating conditions used. Gas phase synthesis in a thermal plasma can be an efficient means for producing, on a continuous basis, ultrafine particles of different compositions and morphologies. |
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| Date de publication | 1988-08-31 |
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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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| Numéro du CNRC | NRCC 28436
NRC-IGM88TC-307-661-G |
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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 | 3568e68d-64eb-4b56-aa66-117a122885e6 |
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| Enregistrement créé | 2020-04-22 |
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| Enregistrement modifié | 2020-06-10 |
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