Ultrahigh strain and piezoelectric behavior in relaxor based ferroelectric single crystals

Seung Eek Park; Thomas R. Shrout

doi:10.1063/1.365983

Ultrahigh strain and piezoelectric behavior in relaxor based ferroelectric single crystals

Seung Eek Park, Thomas R. Shrout

Materials Research Institute (MRI)

Research output: Contribution to journal › Article › peer-review

3887 Scopus citations

Abstract

The piezoelectric properties of relaxor based ferroelectric single crystals, such as Pb(Zn_1/3Nb_2/3)O₃-PbTiO₃ and Pb(Mg_1/3Nb_2/3)O₃-PbTiO₃ were investigated for electromechanical actuators. In contrast to polycrystalline materials such as Pb(Zr,Ti)O₃, morphotropic phase boundary compositions were not essential for high piezoelectric strain. Piezoelectric coefficients (d₃₃'s)>2500 pC/N and subsequent strain levels up to >0.6% with minimal hysteresis were observed. Crystallographically, high strains are achieved for 〈001〉 oriented rhombohedral crystals, although 〈111〉 is the polar direction. Ultrahigh strain levels up to 1.7%, an order of magnitude larger than those available from conventional piezoelectric and electrostrictive ceramics, could be achieved being related to an E-field induced phase transformation. High electromechanical coupling (k₃₃)>90% and low dielectric loss <1%, along with large strain make these crystals promising candidates for high performance solid state actuators.

Original language	English (US)
Pages (from-to)	1804-1811
Number of pages	8
Journal	Journal of Applied Physics
Volume	82
Issue number	4
DOIs	https://doi.org/10.1063/1.365983
State	Published - Aug 15 1997

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1063/1.365983

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title = "Ultrahigh strain and piezoelectric behavior in relaxor based ferroelectric single crystals",

abstract = "The piezoelectric properties of relaxor based ferroelectric single crystals, such as Pb(Zn1/3Nb2/3)O3-PbTiO3 and Pb(Mg1/3Nb2/3)O3-PbTiO3 were investigated for electromechanical actuators. In contrast to polycrystalline materials such as Pb(Zr,Ti)O3, morphotropic phase boundary compositions were not essential for high piezoelectric strain. Piezoelectric coefficients (d33's)>2500 pC/N and subsequent strain levels up to >0.6% with minimal hysteresis were observed. Crystallographically, high strains are achieved for 〈001〉 oriented rhombohedral crystals, although 〈111〉 is the polar direction. Ultrahigh strain levels up to 1.7%, an order of magnitude larger than those available from conventional piezoelectric and electrostrictive ceramics, could be achieved being related to an E-field induced phase transformation. High electromechanical coupling (k33)>90% and low dielectric loss <1%, along with large strain make these crystals promising candidates for high performance solid state actuators.",

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AU - Shrout, Thomas R.

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N2 - The piezoelectric properties of relaxor based ferroelectric single crystals, such as Pb(Zn1/3Nb2/3)O3-PbTiO3 and Pb(Mg1/3Nb2/3)O3-PbTiO3 were investigated for electromechanical actuators. In contrast to polycrystalline materials such as Pb(Zr,Ti)O3, morphotropic phase boundary compositions were not essential for high piezoelectric strain. Piezoelectric coefficients (d33's)>2500 pC/N and subsequent strain levels up to >0.6% with minimal hysteresis were observed. Crystallographically, high strains are achieved for 〈001〉 oriented rhombohedral crystals, although 〈111〉 is the polar direction. Ultrahigh strain levels up to 1.7%, an order of magnitude larger than those available from conventional piezoelectric and electrostrictive ceramics, could be achieved being related to an E-field induced phase transformation. High electromechanical coupling (k33)>90% and low dielectric loss <1%, along with large strain make these crystals promising candidates for high performance solid state actuators.

AB - The piezoelectric properties of relaxor based ferroelectric single crystals, such as Pb(Zn1/3Nb2/3)O3-PbTiO3 and Pb(Mg1/3Nb2/3)O3-PbTiO3 were investigated for electromechanical actuators. In contrast to polycrystalline materials such as Pb(Zr,Ti)O3, morphotropic phase boundary compositions were not essential for high piezoelectric strain. Piezoelectric coefficients (d33's)>2500 pC/N and subsequent strain levels up to >0.6% with minimal hysteresis were observed. Crystallographically, high strains are achieved for 〈001〉 oriented rhombohedral crystals, although 〈111〉 is the polar direction. Ultrahigh strain levels up to 1.7%, an order of magnitude larger than those available from conventional piezoelectric and electrostrictive ceramics, could be achieved being related to an E-field induced phase transformation. High electromechanical coupling (k33)>90% and low dielectric loss <1%, along with large strain make these crystals promising candidates for high performance solid state actuators.

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Ultrahigh strain and piezoelectric behavior in relaxor based ferroelectric single crystals

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