Enhanced energy storage properties and stability in (Pb0.895La0.07)(ZrxTi1-x)O3 antiferroelectric ceramics
Source abstract
Abstract
Abstract Recently, the (Pb,La)(Zr,Ti)O3 antiferroelectric materials with slim-and-slanted double hysteresis loops have been widely drawn in the application of advanced pulsed power capacitors due to its low strain characteristic. In this work, the energy storage properties of (Pb0.895La0.07)(ZrxTi1-x)O3 ceramics with different Zr contents are researched thoroughly because the substitution of Ti4+ by Zr4+ can reduce the tolerance factor t, enhancing the antiferroelectricity. The polarization-electric field hysteresis loops of the PLZT ceramics become slimmer with increasing Zr content. The highest recoverable energy storage density (Wre) of 3.38 J/cm3 and ultrahigh energy efficiency (η) of 86.5% are achieved in (Pb0.895La0.07)(Zr0.9Ti0.1)O3 ceramic. The (Pb0.895La0.07)(Zr0.9Ti0.1)O3 ceramic also hold fairly thermal stability (relative variation of Wre is less than 28% over 30 °C-120 °C), excellent frequency stability (10–1000 Hz) and good fatigue endurance. These results demonstrate that the (Pb0.895La0.07)(Zr0.9Ti0.1)O3 ceramic can be a desirable material for dielectric energy storage capacitors, especially for pulse power technology.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Dielectric materials and actuators · Acoustic Wave Resonator Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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