Abstract
The relationship between the starting temperature of the martensitic transformation, M s, and the grain size of the parent phase, d, in ZrO2-containing ceramics was investigated. The experimental results showed that in tetragonal zirconia polycrystals doped with CeO2 (8 mol%) and Y2O3 (0.25 mol%) (8Ce, 0.25Y-TZP), the M s temperature displays a linear relationship with d −1/2, its slope being negative. A new explanation for this phenomenon, the so-called the size effect, has been presented, in which the grain size of the parent phase affects the M s temperature through the strength of the parent phase. Thermodynamic calculation of the relationship between M s and d gives a result consistent with the experimental ones.
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Tu, J., Jiang, B., Hsu, T.Y. et al. The size effect of the martensitic transformation in ZrO2-containing ceramics. JOURNAL OF MATERIALS SCIENCE 29, 1662–1665 (1994). https://doi.org/10.1007/BF00368942
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DOI: https://doi.org/10.1007/BF00368942