A. E. Panich

Problem of Piezoelectric Sensitivity of 1–3-Type Composites Based on Ferroelectric Ceramics

A new anisotropic 1–3-type composite with high piezoelectric sensitivity is put forward, and trends in increasing the effective parameters characterising piezoelectric sensitivity are analysed. Effective piezoelectric coefficients and , squared figure of merit and related hydrostatic parameters , and are studied within the framework of the proposed model of the ferroelectric ceramic/porous polymer composite with 1–3–0 connectivity. Effects of porosity, microgeometry of pores and their orientation on the aforementioned piezoelectric coefficients and figures of merit of the 1–3–0 composite are studied to show its piezoelectric performance and high piezoelectric sensitivity. A comparison of the effective parameters to those known for the related 1–3-type composites based on ferroelectric ceramics is carried out, and some advantages concerning high piezoelectric sensitivity of the studied 1–3–0 composite are emphasised.

Effect of the matrix subsystem on hydrostatic parameters of a novel 1–3-type piezo-composite

The influence of the aspect ratio and volume fraction of ferroelectric ceramic inclusions in a 0–3 matrix on the hydrostatic parameters of a three-component 1–3-type composite is studied to demonstrate the important role of the elastic properties of the two-component matrix on the composite performance. Differences in the elastic properties of the 0–3 matrix and single-crystal rods lead to a considerable dependence of the hydrostatic response of the composite on the anisotropy of the matrix elastic properties. The performance of a 1–0–3 0.92Pb(Zn1/3Nb2/3)O3–0.08PbTiO3 SC/modified PbTiO3 ceramic/polyurethane composite suggests that this composite system is of interest for hydroacoustic applications due to its high hydrostatic piezoelectric coefficients

Features of the Piezoelectric Response for a Novel Four-Component Composite Structure

d_{h}^{\ast} \approx \;

Features of the Piezoelectric Effect in a Novel PZT-Type Ceramic/Clay Composite

(400--500)

Electromechanical Coupling in the Novel 2-2 Parallel-Connected PMN-0.33PT Single-Domain Crystal/Polymer Composite

\; \textrm{pC/N}

Electret state in oxides of the perovskite family

and

Some specific features of hot-pressed ferroelectric piezoelectric ceramics

g_{h}^{\ast} \sim 0.1 \; \textrm{V} \! \cdot \! \textrm{m}/ \textrm{N}

Understanding the peculiarities of the piezoelectric effect in macro-porous BaTiO3

, squared figure of merit

Electromechanical properties of piezoelectric ceramics-polymer composites of the 0-3 connectivity type

d_{h}^{\ast}g_{h}^{\ast} \approx

Effect of poling regimes on domain structure and properties of PbTiO3-based piezoceramics

(30--40)