Anisotropy Factors and Hydrostatic Parameters of 1–3-Type Piezo-Active Composites with Auxetic Polymer Matrices

Topolov, V. Yu.; Filippov, S. E.; Bisegna, Paolo

doi:10.1080/00150193.2012.707890

Cited by 3 publications

(6 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(6) and (8)). As is known from previous reports on the piezoactive 1‐3 composites poled along the OX 3 axis, the piezoelectric coefficients

d_{33}^{*}

and

e_{33}^{*}

demonstrate a monotonic increase at 0< m <1. Large absolute values of the anisotropy factors from are beneficial for piezoelectric energy‐harvesting devices: in this case we have the preferential direction of the energy conversion ( OX 3 ) at specific oscillation modes of the piezoelectric element, i.e., the longitudinal mode concerned with the ECF

k_{33}^{*}

or the thickness mode concerned with the ECF

k_{t}^{*}

.…”

Section: ‐3 Composites: Effective Properties and Related Parameterssupporting

confidence: 70%

“…Examples of the large piezoelectric anisotropy and validity of conditions (16) in composites with auxetic polymer matrices were discussed previously . Of particular interest are the lead‐free composites where the SC rods are based on FE lead‐free (K, Na)(Nb, Ta)O 3 and (Li, K, Na)(Nb, Ta)O 3 solid solutions, and the auxetic polyethylene matrices (PE‐ n where n= 1, 2, …, 9) are characterized by Poisson's ratios from −0.83 to −0.29.…”

Section: ‐3 Composites: Effective Properties and Related Parametersmentioning

confidence: 99%

“…A modification of the matrix and a formation of the composite structure therein (see insets 3–5 in Figure ) leads to changes in the effective properties of the composite that can be termed a “1‐3‐type composite”. These changes lead to improvement of specific parameters of the 1‐3‐type composite in comparison to its conventional 1‐3 equivalent.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

1‐3‐Type Composites Based on Ferroelectrics: Electromechanical Coupling, Figures of Merit, and Piezotechnical Energy‐Harvesting Applications

et al. 2018

View full text Add to dashboard Cite

The physical and microgeometric factors that are able to improve the piezoelectric performance, anisotropy, and energy‐harvesting characteristics of modern 1‐3‐type composites based on ferroelectrics are discussed. The composite connectivity patterns of particular interest for this study include 1‐3‐0, 1‐0‐3, and 1‐2‐2. The active components of the studied composites are chosen from conventional perovskite‐type ferroelectric ceramics, lead‐free materials, or domain‐engineered single crystals, all of which exhibit particularly intriguing electromechanical properties. Examples of the large anisotropy of piezoelectric coefficients, electromechanical coupling factors, squared figures of merit, and large hydrostatic parameters of the three‐component 1‐3‐type composites are considered in the context of their piezotechnical applications. The applications of these materials include piezoelectric transducers, sensors, energy‐harvesting, and hydroacoustic devices.

show abstract

“…(6) and (8)). As is known from previous reports on the piezoactive 1‐3 composites poled along the OX 3 axis, the piezoelectric coefficients

d_{33}^{*}

and

e_{33}^{*}

k_{33}^{*}

or the thickness mode concerned with the ECF

k_{t}^{*}

.…”

Section: ‐3 Composites: Effective Properties and Related Parameterssupporting

confidence: 70%

Section: ‐3 Composites: Effective Properties and Related Parametersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

1‐3‐Type Composites Based on Ferroelectrics: Electromechanical Coupling, Figures of Merit, and Piezotechnical Energy‐Harvesting Applications

et al. 2018

View full text Add to dashboard Cite

show abstract

“…[24] 216 À78 4.0 Polyurethane [26] 405 À151 3.5 Elastomer [40] 3300 À1480 5.0 Monolithic polyethylene [41,42] 1430 À286 2.3 Auxetic polyethylene [41,42] 5260 4360 2.3 Examples of the large piezoelectric anisotropy andv alidity of conditions (16) in composites with auxetic polymer matrices were discussed previously. [4,17,43] Of particular interest are the lead-free composites [43] where the SC rods are based on FE lead-free (K, Na)(Nb, Ta)O 3 and (Li, K, Na)(Nb,T a)O 3 solid solutions,a nd the auxetic polyethylene matrices (PE-n where n = 1, 2, …, 9) are characterized by Poissonsr atios [41] from À0.83 to À0. 29.…”

Section: -3 Composites:e Ffective Properties and Related Parametersmentioning

confidence: 99%

“…In the case of the 1-3 composite,w hich is shown in insets 1a nd 2inF igure 1, the first (FE) component is distributed continuously along one coordinate axis (normally along the poling axis,asinOX 3 in Figure 1), and the secondcomponent represents am atrix that is distributedc ontinuously along three coordinate axes.Am odification of the matrix and af ormation of the composite structure therein (see insets 3-5 in Figure 1) leads to changes in the effective properties of the composite that can be termeda"1-3-type composite". These changes lead to improvement of specific parameters of the 1-3-type composite [3][4][5][13][14][15][16][17] in comparison to its conventional 1-3 equivalent.…”

Section: Introductionmentioning

confidence: 99%