Topotactically Oriented α-Si3N4 Cores in Sintered β-Si3N4 |
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| Authors: | Martin Krämer |
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| Affiliation: | Max-Planck Institute for Metal Research, Institute of Materials Science, PML, D-7000 Stuttgart, Germany |
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| Abstract: | α-Si3N4 core structures within β-Si3N4 grains have been studied by transmission electron microscopy. The grains were dispersed in an oxynitride glass which was previously melted at 1600°C. The cores were topotactically related to the as-grown β-Si3N4 crystallites and are related to epitactical nucleation during heat treatment as the most probable mechanism. |
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