Volatilization Associated with the Sintering of Polyphase Si3N4 Materials
- 1 August 1982
- journal article
- Published by Wiley in Journal of the American Ceramic Society
- Vol. 65 (8) , c120-c121
- https://doi.org/10.1111/j.1151-2916.1982.tb10493.x
Abstract
Weight loss which occurs while sintering composited Si3N4 powders requires the loss of one or more of the end‐member constituents through a volatilization reaction. By plotting the direction of the compositional change on the appropriate equivalence phase diagram, the principal volatilization reaction can be determined. For a particular composition in the system Si‐Y‐N‐O sintered at 1750°C, the principal volatilization reaction was Si3N4(s) +3SiO2(s)→6SiO(g) +2N2(g).Keywords
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