High-temperature properties of silicon nitride materials

2 High-temperature properties of silicon nitride materials 

In the following chapter fundamentals of the high-temperature behaviour of silicon nitrides and silicon nitride-based composites will be presented. Depending on the sintering additive used, silicon nitride materials with different high-temperature properties can be obtained. Some typical materials are chosen from the broad variety of Si3N4 ceramics that exist and summarized in Table 4. 

A similar tendency is found by comparison of the oxidation behaviour of the materials. With the addition of the sintering aid the composition of the protective 

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Klemm H, Herrmann M, Schubert C (1996) The Influence of the Grain Boundary Phase Composition on the High Temperature Properties of Silicon Nitride Materials. In Parilak L, Danninger H, Dusza J, Weiss B (eds) Proc Int Conf Deformation and Fracture in Structural PM Materials, IMR SAS Kosice 2 75... 

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