Investigation of high frequency (2.45 GHz, 30 GHz) processing of Pb-based piezoelectrics for ultrasound transducers

S. Rhee, Thomas R. Shrout, T. A. Ritter, M. Thumm

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Microwave sintering of PZT based ceramics was investigated using multimode heating at 2.45 and 30 GHz and compared to conventional thermal processing. For PZT 5 and PZT 5H ceramics microwave processing resulted in a reduction of sintering temperature by more than 150°C. of significance to the production of high surface area lead-based components, minimal PbO volatility was detected for samples processed as high as 1200 °C. Microwave sintered fine scale 1-3 piezo composites prepared by the molding technique resulted in a thickness coupling coefficient of 56% and an acoustic impedance of 11.6 MRayls. Bandwidths of greater than 80% were modeled for optimally matched transducers.

Original languageEnglish (US)
Pages (from-to)981-984
Number of pages4
JournalProceedings of the IEEE Ultrasonics Symposium
Volume2
DOIs
StatePublished - Jan 1 2000

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

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