Single crystal Pb(Zn1/3Nb2/3)O3/PbTiO3 (PZN/PT) in medical ultrasonic transducers

Patrick D. Lopath, Seung Eek Park, K. Kirk Shung, T. R. Shrout

Research output: Contribution to journalConference article

15 Scopus citations

Abstract

Solid solutions of Pb(Zn1/3Nb2/3)O3 (PZN) and PbTiO3 (PT) have been grown in single crystal form to sizes large enough to permit the fabrication of a 5 MHz phased array. Transducer construction techniques employed differ from standard ceramic arrays. Crystallographic alignment is found to be a significant contributor to piezoelectric performance. The crystal structure and phase diagram play a major role in processing steps requiting heating such as poling and electroding. A complex composite structure is utilized to allow for efficient operation while maintaining structural integrity. The pulse-echo performance and insertion loss of this array are found to be superior to a similarly constructed PZT 5H array.

Original languageEnglish (US)
Pages (from-to)1643-1646
Number of pages4
JournalProceedings of the IEEE Ultrasonics Symposium
Volume2
StatePublished - Dec 1 1997
EventProceedings of the 1997 IEEE Ultrasonics Symposium. Part 1 (of 2) - Toronto, Can
Duration: Oct 5 1997Oct 8 1997

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

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    Lopath, P. D., Park, S. E., Shung, K. K., & Shrout, T. R. (1997). Single crystal Pb(Zn1/3Nb2/3)O3/PbTiO3 (PZN/PT) in medical ultrasonic transducers. Proceedings of the IEEE Ultrasonics Symposium, 2, 1643-1646.