Abstract
The microstructural features formed by the diffusionless cubic-to-tetragonal(c-t) transition in ZrO2 –Y2O3 alloys were examined by electron microscopy with a special interest in domain structure. The diffusionless c-t transition accompanies two types of microstructures, thin plates or lenticular features and domain structure. These microstructures were found in ZrO2-(3-7)mol%Y2O3 alloys rapidly-cooled from single cubic phase region, but not in ZrO2-8 mol%Y2O3 alloy. The domain structure was always found in a whole region or the sample, and the domain size decreased with an increase of yttria content. On the basis of microstructural examinations, it was concluded that the diffusionless c-t transition has a nature of second order phase transition.
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Sakuma, T., Hata, H. (1989). The Domain Structure of Tetragonal Zirconia in ZrO2-Y2O3 Alloys. In: Meriani, S., Palmonari, C. (eds) Zirconia’88. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-1139-0_26
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DOI: https://doi.org/10.1007/978-94-009-1139-0_26
Publisher Name: Springer, Dordrecht
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