Effect of Ho doping on piezoelectric properties of BCZT ceramics
Source abstract
Abstract
Abstract Lead-free (Ba 0.99 Ca 0.01 )(Ti 0.98 Zr 0.02 )O 3 (BCZT) + x mol% Ho ( x = 0–0.6) ceramics were prepared using solid-state reaction technique. High piezoelectric coefficient of d 33 = 330 pC/N and planar electromechanical coupling factor of k p = 40% were obtained at x = 0.2%. Furthermore, greatly enhanced temperature stability of the piezoelectric properties was obtained in the temperature range from 20 to 100 °C, in which the Ho doped BCZT ceramics exhibited pure tetragonal phase. With the increase of Ho content, the orthorhombic–tetragonal phase transition shifted towards low temperature, while Curie temperature ( T c ) remained at about 120 °C. The results indicate that Ho doped BCZT ceramics could be promising candidate as lead-free piezoelectric materials.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Acoustic Wave Resonator Technologies · Microwave Dielectric Ceramics Synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (14)
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