Formation of α-Si3N4 Solid Solutions in the System Si3N4-A1N-Y2O3 |
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| Authors: | Zhen-Kun Huang Peter Greil Günter Petzow |
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| Affiliation: | Max-Planck-Institut für Metallforschung, Institut für Werkstoffwissenschaften, Pulvermetallurgisches Laboratorium, Heisenbergstr. 5, D-7000 Stuttgart 80, FRG |
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| Abstract: | The subsolidus phase diagram of the quasiternary system Si3N4-AlN-Y2O3 was established. In this system α-Si3N4 forms a solid solution with 0.1Y2O3: 0.9 AIN. The solubility limits are represented by Y0.33Si10.5Al1.5O0.5N15.5 and Y0.67Si9A13ON15. At 1700°C an equilibrium exists between β-Si3N4 and this solid solution. |
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