Abstract
The relationship between the optical phonon parameters and the oxygen ion conductivities were investigated for AlYb co-doped zirconia ceramics. Intrinsic intragrain ion conductivity, Ïdc, decreased with increasing Al loading into ytterbia-stabilized zirconia, while the damping parameter of the lattice vibration, Îł1TO, increased. This phenomenon agreed with findings of our previous study, which revealed a relationship between the Ïdc and the Îł1TO for zirconia-based ion conductors.
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