Abstract
Stable cubic ZrO2 up to a temperature of 1173 K has been synthesized by a chemical precipitation technique. Such a stability appears to be driven by particle size. The critical value below which cubic ZrO2 has been found to be stable is 17 nm. The x-ray diffraction pattern of such ultrafine cubic particles is similar to that obtained by stabilization of ZrO2 by the addition of 20 mole % CaO.
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Chatterjee, A., Pradhan, S.K., Datta, A. et al. Stability of cubic phase in nanocrystalline ZrO2. Journal of Materials Research 9, 263–265 (1994). https://doi.org/10.1557/JMR.1994.0263
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DOI: https://doi.org/10.1557/JMR.1994.0263