Abstract
The Ca1−xNdxCu3Ti4O12(x = 0.0%, 0.1%, 0.5% and 1.0%, respectively) ceramics were synthesized by the solid-state reaction method in the temperature range of 1000°C to 1100°C, and single-phase structures with space group Im3 were obtained up to x = 1.0%. The effects of Nd-substitution on the dielectric properties and conductivity of Ca1−xNdxCu3Ti4O12ceramics were investigated and discussed. The room temperature dielectric constant and dielectric loss of Ca1−xNdxCu3Ti4O12ceramics slightly decreased with x = 0.1% and 0.5%, but increased with x = 1.0%. The Nd-substitution has little effect on the giant dielectric constant step but a strong effect on the high-temperature dielectric relaxations.
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