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Peculiarities of Silicon Nitride and Carbide Powder Synthesis

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Abstract

The paper shows that temperature, burning rate and content of main substance bear a relationship to nitrogen pressure in a reactor, charge density, blank diameter, specific surface of initial silicon powder at synthesis of Si3N4-SiC powder composition. It has been shown that control of synthesis conditions makes it possible to obtain Si3N4-SiC powder of the given composition and particle structure. During the synthesis process high-tensile disperse oc-SiC particles, a and p Si3N4 particles of hexahedral and octahedral shape with a size of 0.02...0.2 microns, P-Si3N4 particles of irregular shape and a-Si3N4 particles as fibres have been formed.

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Kovalevsky V.N., Kovalevskaya A.V., Pytko V.V. Peculiarities of Silicon Nitride and Carbide Powder Synthesis. Science & Technique. 2003;(3):20-23. (In Russ.)

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ISSN 2227-1031 (Print)
ISSN 2414-0392 (Online)