Phase composition and morphology of products of combustion of ferrosilicon in nitrogen

L. N. Chukhlomina, Yu M. Maksimov, O. G. Vitushkina, N. N. Golobokov, V. I. Vereshchagin

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8 Citations (Scopus)

Abstract

The results of a study of silicon nitride phase formation in combustion of ferrosilicon in gaseous nitrogen are reported. It was shown that formation of α-or β-modifications of silicon nitride is basically determined by the composition of the batch for self-propagating high-temperature synthesis. When ammonium chloride was added to the initial ferrosilicon, a combustion product with a high (up to 80%) α-Si 3N 4 content is formed, while dilution with the final product and magnesium fluoride results in predominant (more than 95%) formation of β-Si 3N 4. The particle size and shape are a function of the conditions of synthesis and are primarily determined by the temperature and the additives incorporated in the initial alloy.

Original languageEnglish
Pages (from-to)63-65
Number of pages3
JournalGlass and Ceramics (English translation of Steklo i Keramika)
Volume64
Issue number1-2
DOIs
Publication statusPublished - Jan 2007

ASJC Scopus subject areas

  • Ceramics and Composites

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