Carbothermal preparation of Si2N2O powder

M. Bolech, R. Metselaar, F.K. van Dijen, F. Blömer, G. With, de, P.P.J. Ramaekers

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Abstract

At temperatures 1400 - 1450 °C silicon oxynitride powder can be produced from silica/carbon mixtures with a molar ratio 2/3 under a nitrogen flow. The conversion rate is considerably exhanced by the presence of oxide additions like CaO, BaO and SrO, which form a liquid phase with silica at the reaction temperature. The lowest temperature at which Si2N2O was observed was 1350 °C, consistent with recent thermodynamic data.
Original languageEnglish
Title of host publicationHigh tech ceramics : proceedings of the world congress
EditorsP. Vincenzini
Place of PublicationAmsteradam
PublisherElsevier
Pages527-533
ISBN (Print)0-444-42776-7
Publication statusPublished - 1987

Publication series

NameMaterials Science Monographs
Volume38

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