Innovations in piezoelectric materials for ultrasound transducers

T. R. Shrout; S. E. Park; P. Lopath; R. Meyer; T. Ritter; K. Shung

doi:10.1117/12.307998

Innovations in piezoelectric materials for ultrasound transducers

T. R. Shrout, S. E. Park, P. Lopath, R. Meyer, T. Ritter, K. Shung

Research output: Contribution to journal › Conference article › peer-review

21 Scopus citations

Abstract

Piezoelectric materials lie at the heart of ultrasonic transducers. Recent advances in materials development include submicron piezoelectric ceramics (PZT) which lead to improvements in feature size, i.e. aspect ratio, element width, etc., for linear arrays and high frequency transducers (> 100 MHz). In contrast to fine grain ceramics, single crystal materials based on Relaxor-PT ferroelectrics offer electromechanical coupling coefficients > 90% with a range of dielectric permittivity (100s to 1000s) allowing flexibility in transducer engineering in regard to electrical impedance matching. Using KLM modeling, very high bandwidth performance > 120% is projected. Specific examples of high frequency 1-3 composites and 1-D linear array transducers fabricated from new piezoelectric materials, including sol-gel derived PZT fibers, are presented.

Original language	English (US)
Pages (from-to)	174-183
Number of pages	10
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	3341
DOIs	https://doi.org/10.1117/12.307998
State	Published - Dec 1 1998
Event	Medical Imaging 1998: Ultrasonic Transducer Engineering - San Diego, CA, United States Duration: Feb 25 1998 → Feb 26 1998

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.307998

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title = "Innovations in piezoelectric materials for ultrasound transducers",

abstract = "Piezoelectric materials lie at the heart of ultrasonic transducers. Recent advances in materials development include submicron piezoelectric ceramics (PZT) which lead to improvements in feature size, i.e. aspect ratio, element width, etc., for linear arrays and high frequency transducers (> 100 MHz). In contrast to fine grain ceramics, single crystal materials based on Relaxor-PT ferroelectrics offer electromechanical coupling coefficients > 90% with a range of dielectric permittivity (100s to 1000s) allowing flexibility in transducer engineering in regard to electrical impedance matching. Using KLM modeling, very high bandwidth performance > 120% is projected. Specific examples of high frequency 1-3 composites and 1-D linear array transducers fabricated from new piezoelectric materials, including sol-gel derived PZT fibers, are presented.",

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AU - Shrout, T. R.

AU - Park, S. E.

AU - Lopath, P.

AU - Meyer, R.

AU - Ritter, T.

AU - Shung, K.

PY - 1998/12/1

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N2 - Piezoelectric materials lie at the heart of ultrasonic transducers. Recent advances in materials development include submicron piezoelectric ceramics (PZT) which lead to improvements in feature size, i.e. aspect ratio, element width, etc., for linear arrays and high frequency transducers (> 100 MHz). In contrast to fine grain ceramics, single crystal materials based on Relaxor-PT ferroelectrics offer electromechanical coupling coefficients > 90% with a range of dielectric permittivity (100s to 1000s) allowing flexibility in transducer engineering in regard to electrical impedance matching. Using KLM modeling, very high bandwidth performance > 120% is projected. Specific examples of high frequency 1-3 composites and 1-D linear array transducers fabricated from new piezoelectric materials, including sol-gel derived PZT fibers, are presented.

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