Abstract
Silicon nitride has been hot-pressed and pressureless sintered using densification aids based on the Al2O3-SiO2-TiO2 system. Hot-pressing can be achieved satisfactorily at 1700 °C with an Al2O3-TiO2 ratio of 1:1; sintering at 1850 °C requires liquid phase compositions richer in Al2O3 and giving a transient ternary liquid at temperatures in the region of 1500 °C. Dense materials prepared in this system show good resistance to oxidation at temperatures up to 1500 °C.
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© 1992 Elsevier Science Publishers Ltd and MPA Stuttgart
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Ovreboe, D.N., Biswas, S.K., Castro, F., Riley, F.L. (1992). An Oxidation Resistant Al2O3-TiO2 Sintered Silicon Nitride. In: Carlsson, R., Johansson, T., Kahlman, L. (eds) 4th International Symposium on Ceramic Materials and Components for Engines. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-2882-7_30
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DOI: https://doi.org/10.1007/978-94-011-2882-7_30
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