Structural design of PZT porous ceramics obtained via free-casting by ice-templating and performance exploration
Source abstract
Abstract
Abstract In this paper, water is used as ice-template to prepare 3-1 type porous lead zirconate titanate (PZT) ceramics with aligned porosity by freeze-casting process. To demonstrate the microstructure and performance, pretreatment of raw materials, viscosity of slurries, temperature of binder burnout, mechanical properties, dielectric constant ( e 33 T ) and piezoelectric coefficient (d33) as a function of solid content under the same single vertical temperature gradient condition are studied. The compressive strength of PZT poled perpendicular (PZT⊥) is 230% times of the PZT poled parallel (PZT║) along the freezing direction due to the characteristics of the layered pore structure. Meanwhile, the fabricated samples show relatively high e 33 T and d33 of 969 (at 103 Hz) and 400 pC/N, respectively. This work provides a novel preparation method for the manufacture of new piezoelectric materials with high-performance.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Cellular and Composite Structures · Dielectric materials and actuators · Ferroelectric and Piezoelectric Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (24)
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