High-temperature acoustic emission sensing tests using a Yttrium calcium oxyborate sensor

Joseph A. Johnson, Kyungrim Kim, Shujun Zhang, Di Wu, Xiaoning Jiang

Research output: Contribution to journalArticle

11 Scopus citations


Piezoelectric materials have been broadly utilized in acoustic emission sensors, but are often hindered by the loss of piezoelectric properties at temperatures in the 500°C to 700°C range or higher. In this paper, a piezoelectric acoustic emission sensor was designed and fabricated using yttrium calcium oxyborate (YCOB) single crystals, followed by Hsu Nielsen tests for high-temperature (>700°C) applications. The sensitivity of the YCOB sensor was found to have minimal degradation with increasing temperature up to 1000°C. During Hsu Nielsen tests with a steel bar, this YCOB acoustic sensor showed the ability to detect zero-order symmetric and antisymmetric modes at 30 and 120 kHz, respectively, as well as distinguish a first-order antisymmetric mode at 240 kHz at elevated temperatures up to 1000°C. The frequency characteristics of the signal were verified using a finite-element model and wavelet transformation analysis.

Original languageEnglish (US)
Article number6805681
Pages (from-to)805-814
Number of pages10
JournalIEEE transactions on ultrasonics, ferroelectrics, and frequency control
Issue number5
StatePublished - May 2014

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Acoustics and Ultrasonics
  • Electrical and Electronic Engineering

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