High-temperature (>500° C) ultrasonic transducers: An experimental comparison among three candidate piezoelectric materials

David A. Parks, Shujun Zhang, Bernhard Tittmann

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

High-temperature piezoelectric crystals, including YCa4O(BO 3)3, LiNbO3, and AlN, have been studied for use in ultrasonic transducers under continuous operation for 55 h at 550 °C. Additionally, thermal ratcheting tests were performed on the transducers by subjecting the crystals to heat treatments followed by ultrasonic performance testing at room temperature and 500°C. The changes resulting from the heat treatments were less than the statistical spread obtained in repeated experiments and were thus considered negligible. Finally, in situ measurements of the pulse-echo response of YCa4O(BO 3)3 were performed at temperatures up to 950 °C for the first time, showing stable characteristics up to these high temperatures.

Original languageEnglish (US)
Article number6512839
Pages (from-to)1010-1015
Number of pages6
JournalIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volume60
Issue number5
DOIs
StatePublished - 2013

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Acoustics and Ultrasonics
  • Instrumentation

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