Novel high power piezoelectrics for transformers and actuators

Research output: Contribution to journalConference article

Abstract

This letter reports a Pb(Zr 0.5Ti 0.5)O 3 (PZT) based composition, which provides high dielectric, piezoelectric and electromechanical properties. The composition corresponding to 0.2 PZN - 0.8 PZT + 0.5 wt% MnO 2 provides the radial mode coupling factor (k p) of 0.58, longitudinal mode piezoelectric constant (d 33) of 277 pC/N, dielectric constant (ε 33o) of 946 and mechanical quality factor (Q m) of 1402. X-ray diffraction, dielectric and polarization-electric field measurements were done to investigate the origin for this high performance. It was found that high soft properties are obtained due to the shifting of PZT composition towards morphotropic phase boundary (MPB) and high hard properties are obtained due to the generation of dipolar defects which pin the polarization. The properties of the composition corresponding to 0.9 PZT - 0.1PMnN (Zr/Ti = 0.51/0.49) modified with 6 mol% Sr were found to be: k p = 0.53, Q m = 800, d 33 = 274, e 33o = 1290 and tanδ = 1.1%, with a TCF of -8 ppm/°C (-20 to 80°C). High piezoelectric properties with low TCF shows the suitability of this composition for ultrasonic devices used under fluctuating thermal environment.

Original languageEnglish (US)
Pages (from-to)23-32
Number of pages10
JournalMaterials Research Society Symposium - Proceedings
Volume785
StatePublished - Dec 1 2003
EventMaterials and Devices for Smart Systems - Boston, MA, United States
Duration: Dec 1 2003Dec 5 2003

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transformers
Actuators
actuators
Chemical analysis
Electric field measurement
Ultrasonic devices
Polarization
Phase boundaries
thermal environments
polarization
Permittivity
coupled modes
dielectric properties
Q factors
X ray diffraction
ultrasonics
Defects
permittivity
electric fields
defects

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

@article{e7296c68182a43b9b235fa1185e55c71,
title = "Novel high power piezoelectrics for transformers and actuators",
abstract = "This letter reports a Pb(Zr 0.5Ti 0.5)O 3 (PZT) based composition, which provides high dielectric, piezoelectric and electromechanical properties. The composition corresponding to 0.2 PZN - 0.8 PZT + 0.5 wt{\%} MnO 2 provides the radial mode coupling factor (k p) of 0.58, longitudinal mode piezoelectric constant (d 33) of 277 pC/N, dielectric constant (ε 33/ε o) of 946 and mechanical quality factor (Q m) of 1402. X-ray diffraction, dielectric and polarization-electric field measurements were done to investigate the origin for this high performance. It was found that high soft properties are obtained due to the shifting of PZT composition towards morphotropic phase boundary (MPB) and high hard properties are obtained due to the generation of dipolar defects which pin the polarization. The properties of the composition corresponding to 0.9 PZT - 0.1PMnN (Zr/Ti = 0.51/0.49) modified with 6 mol{\%} Sr were found to be: k p = 0.53, Q m = 800, d 33 = 274, e 33/ε o = 1290 and tanδ = 1.1{\%}, with a TCF of -8 ppm/°C (-20 to 80°C). High piezoelectric properties with low TCF shows the suitability of this composition for ultrasonic devices used under fluctuating thermal environment.",
author = "Shashank Priya and Kenji Uchino",
year = "2003",
month = "12",
day = "1",
language = "English (US)",
volume = "785",
pages = "23--32",
journal = "Materials Research Society Symposium - Proceedings",
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Novel high power piezoelectrics for transformers and actuators. / Priya, Shashank; Uchino, Kenji.

In: Materials Research Society Symposium - Proceedings, Vol. 785, 01.12.2003, p. 23-32.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Novel high power piezoelectrics for transformers and actuators

AU - Priya, Shashank

AU - Uchino, Kenji

PY - 2003/12/1

Y1 - 2003/12/1

N2 - This letter reports a Pb(Zr 0.5Ti 0.5)O 3 (PZT) based composition, which provides high dielectric, piezoelectric and electromechanical properties. The composition corresponding to 0.2 PZN - 0.8 PZT + 0.5 wt% MnO 2 provides the radial mode coupling factor (k p) of 0.58, longitudinal mode piezoelectric constant (d 33) of 277 pC/N, dielectric constant (ε 33/ε o) of 946 and mechanical quality factor (Q m) of 1402. X-ray diffraction, dielectric and polarization-electric field measurements were done to investigate the origin for this high performance. It was found that high soft properties are obtained due to the shifting of PZT composition towards morphotropic phase boundary (MPB) and high hard properties are obtained due to the generation of dipolar defects which pin the polarization. The properties of the composition corresponding to 0.9 PZT - 0.1PMnN (Zr/Ti = 0.51/0.49) modified with 6 mol% Sr were found to be: k p = 0.53, Q m = 800, d 33 = 274, e 33/ε o = 1290 and tanδ = 1.1%, with a TCF of -8 ppm/°C (-20 to 80°C). High piezoelectric properties with low TCF shows the suitability of this composition for ultrasonic devices used under fluctuating thermal environment.

AB - This letter reports a Pb(Zr 0.5Ti 0.5)O 3 (PZT) based composition, which provides high dielectric, piezoelectric and electromechanical properties. The composition corresponding to 0.2 PZN - 0.8 PZT + 0.5 wt% MnO 2 provides the radial mode coupling factor (k p) of 0.58, longitudinal mode piezoelectric constant (d 33) of 277 pC/N, dielectric constant (ε 33/ε o) of 946 and mechanical quality factor (Q m) of 1402. X-ray diffraction, dielectric and polarization-electric field measurements were done to investigate the origin for this high performance. It was found that high soft properties are obtained due to the shifting of PZT composition towards morphotropic phase boundary (MPB) and high hard properties are obtained due to the generation of dipolar defects which pin the polarization. The properties of the composition corresponding to 0.9 PZT - 0.1PMnN (Zr/Ti = 0.51/0.49) modified with 6 mol% Sr were found to be: k p = 0.53, Q m = 800, d 33 = 274, e 33/ε o = 1290 and tanδ = 1.1%, with a TCF of -8 ppm/°C (-20 to 80°C). High piezoelectric properties with low TCF shows the suitability of this composition for ultrasonic devices used under fluctuating thermal environment.

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