High Purity, Crystallinity and Electromechanical Sensitivity of Lead-Free (Ba0.85Ca0.15)(Zr0.10Ti0.90)O3 Synthesized Using an EDTA/glycerol Modified Pechini Method

A single (Ba<sub>0.85</sub>Ca<sub>0.15</sub>)(Zr<sub>0.10</sub>Ti<sub>0.90</sub>)O<sub>3</sub> phase material with a tetragonal structure is processed and synthesized with a modified Pechini method using ethylenediaminetetraacetic acid and glycerol as chelating and esterifying agents, respectively. The complete chemical transformation to the desired phase is achieved at 900 °C, which is 300 °C lower than conventional synthesis methods. Its consolidation, reaching up to 91% relative density, is carried out at 1400 °C. It is clearly demonstrated that the use of ethylenediaminetetraacetic acid and glycerol reagents is particularly beneficial for inducing a homogeneous grain size distribution (10 μm), which leads to very promising electromechanical properties (d<sub>33</sub> = 451 pC/N; d<sub>31</sub> = 160 pC/N; kp = 0.40; ε'33T = 4790 and Q<sub>m</sub> = 358) of the densified system.

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Journal
Materials
Published
2025-03-06
DOI
https://doi.org/10.3390/ma18051180
Primary Topic
Ferroelectric and Piezoelectric Materials
Type
article
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article

High Purity, Crystallinity and Electromechanical Sensitivity of Lead-Free (Ba0.85Ca0.15)(Zr0.10Ti0.90)O3 Synthesized Using an EDTA/glycerol Modified Pechini Method

Marzia Mureddu, L. Pardo, Sebastiano Garroni, Laura Caggiu et al.
Materials
Ferroelectric and Piezoelectric Materials
article

High Purity, Crystallinity and Electromechanical Sensitivity of Lead-Free (Ba0.85Ca0.15)(Zr0.10Ti0.90)O3 Synthesized Using an EDTA/glycerol Modified Pechini Method

Marzia Mureddu, L. Pardo, Sebastiano Garroni, Laura Caggiu, Fabrizio Murgia, Stefano Enzo, Gabriele Mulas, S. López-Esteban, Costantino Cau, José F. Bartolomé, Roberto Orrù
article en

Abstract

A single (Ba<sub>0.85</sub>Ca<sub>0.15</sub>)(Zr<sub>0.10</sub>Ti<sub>0.90</sub>)O<sub>3</sub> phase material with a tetragonal structure is processed and synthesized with a modified Pechini method using ethylenediaminetetraacetic acid and glycerol as chelating and esterifying agents, respectively. The complete chemical transformation to the desired phase is achieved at 900 °C, which is 300 °C lower than conventional synthesis methods. Its consolidation, reaching up to 91% relative density, is carried out at 1400 °C. It is clearly demonstrated that the use of ethylenediaminetetraacetic acid and glycerol reagents is particularly beneficial for inducing a homogeneous grain size distribution (10 μm), which leads to very promising electromechanical properties (d<sub>33</sub> = 451 pC/N; d<sub>31</sub> = 160 pC/N; kp = 0.40; ε'33T = 4790 and Q<sub>m</sub> = 358) of the densified system.

MaterialsVol. 18(5)
Consejo Superior de Investigaciones Científicas (ES), University of Sassari (IT), University of Cagliari (IT), Instituto de Ciencia de Materiales de Madrid (ES)
Openalex Percentile: Top 97%
Ferroelectric and Piezoelectric Materials
DOIOpen Access PDFOpenAlex
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High Purity, Crystallinity and Electromechanical Sensitivity of Lead-Free (Ba0.85Ca0.15)(Zr0.10Ti0.90)O3 Synthesized Using an EDTA/glycerol Modified Pechini Method — Marzia Mureddu, L. Pardo, et al. · Materials (2025) | TGRS Research Map | TGRS