Abstract
Ultrasonic compressional and shear wave velocity measurements have been made on the (ZrO2)1−A (Y2O3)A−X (Fe2O3) X system at 5 MHz. The amounts of Fe2O3 dopant ranging from 0 up to 10 mol% were mixed with the ceramic matrix. In this paper the ultrasonic compressional and shear wave velocity measurements made on this system at room temperature are discussed. The elastic moduli, Poisson's ratio and density are found to be sensitive to the additions of the Fe2O3 dopant and they show an anomalous behaviour. A qualitative explanation of the compositional dependence of the elastic moduli and Poisson's ratio is given in terms of changes in packing density, bond strength, co-ordination number and cross-link density.
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Ewaida, M.A., Higazy, A.A., Bridge, B. et al. Elastic constants of the iron oxide doped yttria-stabilized zirconia. J Mater Sci 24, 3660–3666 (1989). https://doi.org/10.1007/BF02385753
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DOI: https://doi.org/10.1007/BF02385753