Multicomponent toughened ceramic materials obtained by reaction sintering |
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Authors: | M. F. Melo J. S. Moya P. Pena S. De Aza |
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Affiliation: | (1) Instituto de Cerámica y Vidrio, CSIC, Arganda del Rey, Madrid, Spain |
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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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