| DOI | Resolve DOI: https://doi.org/10.1016/B978-0-08-036448-3.50062-1 |
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| Author | Search for: Choi, H.1; Search for: Parent, L.1; Search for: Dallaire, S.1; Search for: Cole, K.1; Search for: Noël, D.1 |
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| Affiliation | - National Research Council of Canada
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| Format | Text, Book Chapter |
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| Conference | International Symposium on the Production and Processing of Fine Particles, August 28–31, 1988, Montreal, Quebec, Canada |
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| Abstract | 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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| Publication date | 1988-08-31 |
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| Publisher | Elsevier |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC number | NRCC 28436
NRC-IGM88TC-307-661-G |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 3568e68d-64eb-4b56-aa66-117a122885e6 |
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| Record created | 2020-04-22 |
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| Record modified | 2020-06-10 |
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