Abstract
ZrO2-Gd2O3 alloys containing 2,3,5 and 8 mol.% Gd2O3 have been prepared by mixed oxide (MO), hybrid sol-gel (SG), and co-precipitation (CP) routes. No tetragonal (t) phase is retained in the MO method, while 100% t phase is obtained in the calcined CP samples; the SG method leads to only partial stabilization of the t phase. Washing of the CP powders with propan-2-ol leads to unagglomerated powders with increased specific surface area (145 versus 89 m2g−1) and sintered density (98% versus 79%). Cubic and t′ phase also appear on sintering the samples with >2 mol.% Gd2O3.
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Bhattacharyya, S., Agrawal, D.C. Preparation of tetragonal ZrO2-Gd2O3 powders. Journal of Materials Science 30, 1495–1499 (1995). https://doi.org/10.1007/BF00375254
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DOI: https://doi.org/10.1007/BF00375254