Abstract
In Patent (16/4) Annawerk Keramische Betriebe GmbH disclose a shaped body, sintered and/or pressed at high temperatures from a mixture of 0.2–2.0 w.%. Al2O3; 0.2–2.0 w.%. Fe2O3; max. 0.4 w.%. carbon, 1.0–20.0 w.%. Y2O3 and 76.0–98.6 w.%. Si3N4, furthermore 0.05–3.00 w.%. Li2O (referring to the total amount of Si3N4, Y2O3 and Li2O). The characteristics of the composition do not deteriorate, neither at room temperature, nor at sintering temperature. The components are applied in such proportions that the C-content of the final product does not exceed 0.4%.
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© 1986 ECSC, EEC, EAEC, Brussels and Luxembourg
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Terpstra, M. (1986). Intermediates mainly consisting of lithium and yttrium. In: Terpstra, M. (eds) Materials for Refractories and Ceramics. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4325-4_15
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DOI: https://doi.org/10.1007/978-94-009-4325-4_15
Publisher Name: Springer, Dordrecht
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