Piezoelectric properties of Fe2O3 doped BiYbO3-Pb(Zr,Ti)O3 high Curie temperature ceramics
Source abstract
Abstract
Abstract The phase structure and electrical properties of BiYbO3–Pb(Zr,Ti)O3+x(mol%)Fe2O3 (BY–PZT–xFe) piezoelectric ceramics for applications at higher temperatures than those of PZT were investigated with a special emphasis on the influence of Fe2O3 content. All ceramics have a perovskite main phase with a tetragonal symmetry. The partial substitution of Fe3+ with Zr4+ and Ti4+ in the B-site caused a shrinkage of the perovskite lattice and a decreased tetragonality (c/a) with increasing x up to the solid solubility saturation at x=0.4. A lower tetragonality c/a, better grain morphology, and higher density as well as limited impurity phase were achieved at x=0.4 composition, all of which contribute to improved piezoelectric properties. The BY–PZT–xFe ceramics showed a high Curie temperature Tc up to 390 °C and good piezoelectric properties with d33 reaching 175 pC/N at x=0.4.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Multiferroics and related materials · Acoustic Wave Resonator Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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