Find relevant publications (with full abstract and more) on the right side of many pages or on our searchable publications list
Tip of the day
Elastic Properties of Monoclinic Hafnium Oxide at Room Temperature
J. Am. Chem. Soc 60, 488 (1977)
doi:
10.1111/j.1151-2916.1977.tb14088.x The Young's and shear moduli of polycrystalline monoclinic hafnium oxide were determined by the sonic resonance method at room temperature as a function of volume fraction porosity. The Spriggs equation empirically described the data and the zero porosity moduli as 283.6 GN/m² and 109.2 GN/m² for Young's and shear moduli, respectively. The Debye temperature calculated from the elastic constants was 484°K. Several specimens had anomalously low moduli values, attributed to microcracking. Grain size and internal friction measurements showed that the microcracking occurred in specimens with grain sizes > 2 to 3 μm and was characterized by high internal friction.