Abstract
Single crystals of α-Si3N4 were annealed at 2000°-2150°C. The β phase was detected after annealing at 2150°C only when the crystals were surrounded by MgO·3Al2O3 or Y2O3 powders. On the other hand, no evidence of the α-β transformation was found when the crystals were annealed without additives. The solution-precipitation mechanism was concluded to be the dominant factor in the α-β transformation of Si3N4.
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CITATION STYLE
APA
Suematsu, H., Mitomo, M., Mitchell, T. E., Petrovic, J. J., Fukunaga, O., & Ohashi, N. (1997). The α-β transformation in silicon nitride single crystals. Journal of the American Ceramic Society, 80(3), 615–620. https://doi.org/10.1111/j.1151-2916.1997.tb02876.x
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