Publication Date:
2016-10-01
Description:
The lead-free ceramics with nominal composition (Ba 0.85 Ca 0.15 )(Ti 0.9 Zr 0.1 )O 3 (BCTZ) were prepared by a conventional solid-state reaction combined with a liquid precursor mixing method. Structural, dielectric, piezoelectric, and ferroelectric properties of the ceramics were systematically investigated. Excellent electrical properties of T c ~ 101°C, tanδ ~ (0.003–0.05), k p ~ 0.46, d 33 ~ 560 pC/N, P s ~17 μC/cm 2 and a large strain of 0.43% were reproducibly obtained for the BCTZ ceramics. In addition, BCTZ-based monolithic multilayer piezoelectric actuators were successfully fabricated by alternately laminating the claimed piezoelectric ceramics and internal-binder. The actuators show large displacements under low driven voltage. These results highlight that the BCTZ ceramics are excellent candidate for multilayer piezoelectric devices.
Print ISSN:
1546-542X
Electronic ISSN:
1744-7402
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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