Abstract
Very dense zirconia-toughened ceramics with a mullite matrix based on the quaternary system ZrO2-Al2O3-SiO2-MgO in the temperature range as low as 1450 to 1500° C have been obtained by reaction sintering of zircon/alumina/magnesia mixtures. The shrinkage, advance of reaction, microstructure, densification mechanism and mechanical properties are reported. The results are explained in terms of transitory and permanent liquids that appear at ≤1425° C and ~ 1450° C respectively.
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References
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Miranzo, P., Pena, P., Moya, J.S. et al. Multicomponent toughened ceramic materials obtained by reaction sintering. J Mater Sci 20, 2702–2710 (1985). https://doi.org/10.1007/BF00553031
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DOI: https://doi.org/10.1007/BF00553031