title: High temperature, high power piezoelectric composite transducers.
abstract: Piezoelectric composites are a class of functional materials consisting of piezoelectric active materials and non-piezoelectric passive polymers, mechanically attached together to form different connectivities. These composites have several advantages compared to conventional piezoelectric ceramics and polymers, including improved electromechanical properties, mechanical flexibility and the ability to tailor properties by using several different connectivity patterns. These advantages have led to the improvement of overall transducer performance, such as transducer sensitivity and bandwidth, resulting in rapid implementation of piezoelectric composites in medical imaging ultrasounds and other acoustic transducers. Recently, new piezoelectric composite transducers have been developed with optimized composite components that have improved thermal stability and mechanical quality factors, making them promising candidates for high temperature, high power transducer applications, such as therapeutic ultrasound, high power ultrasonic wirebonding, high temperature non-destructive testing, and downhole energy harvesting. This paper will present recent developments of piezoelectric composite technology for high temperature and high power applications. The concerns and limitations of using piezoelectric composites will also be discussed, and the expected future research directions will be outlined.
authors.affiliation: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA. hjlee@jpl.nasa.gov.
authors.forename: Hyeong Jae
authors.initials: HJ
authors.lastname: Lee
authors.affiliation: Material Research Institute, Pennsylvania State University, University Park, PA 16802, USA. soz1@psu.edu.
authors.forename: Shujun
authors.initials: S
authors.lastname: Zhang
authors.affiliation: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA. yoseph.bar-cohen@jpl.nasa.gov.
authors.forename: Yoseph
authors.initials: Y
authors.lastname: Bar-Cohen
authors.affiliation: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA. stewart.sherrit@jpl.nasa.gov.
authors.forename: Stewart
authors.initials: S
authors.lastname: Sherrit
mesh_terms: D004867:Equipment Design / Q000295:instrumentation*; D006358:Hot Temperature; D011108:Polymers / Q000737:chemistry; D014159:Transducers; D014465:Ultrasonics / Q000295:instrumentation
chemical_list: D011108:Polymers
references.citation: IEEE Trans Ultrason Ferroelectr Freq Control. 1991;38(3):256-70
references.pmid: 18267583
references.citation: IEEE Trans Ultrason Ferroelectr Freq Control. 2009 Aug;56(8):1523-7
references.pmid: 19686966
references.citation: Curr Med Imaging Rev. 2011 Nov 1;7(4):328-339
references.pmid: 22545033
references.citation: IEEE Trans Ultrason Ferroelectr Freq Control. 1999;46(4):1028-34
references.pmid: 18238508
references.citation: IEEE Trans Ultrason Ferroelectr Freq Control. 2010 Oct;57(10):2138-46
references.pmid: 20889397
references.citation: Fertil Steril. 2011 Mar 1;95(3):900-5
references.pmid: 21067723
references.citation: IEEE Trans Ultrason Ferroelectr Freq Control. 1991;38(6):595-602
references.pmid: 18267624
references.citation: Ultrasonics. 2000 Mar;38(1-8):77-80
references.pmid: 10829633
references.citation: IEEE Trans Ultrason Ferroelectr Freq Control. 2010 Sep;57(9):2076-90
references.pmid: 20875996
references.citation: IEEE Trans Ultrason Ferroelectr Freq Control. 1998;45(6):1497-505
references.pmid: 18249997
references.citation: Appl Phys Lett. 2012 Jul 16;101(3):32902
references.pmid: 22893730
references.citation: J Phys D Appl Phys. 2013 Apr 24;46(16):165306
references.pmid: 23729863
references.citation: Ultrasound Med Biol. 2000 Jan;26(1):153-9
references.pmid: 10687803
references.citation: IEEE Trans Ultrason Ferroelectr Freq Control. 2005 May;52(5):746-75
references.pmid: 16048177
references.citation: Adv Funct Mater. 2010 Sep 23;20(18):3154-3162
references.pmid: 21954374
references.citation: IEEE Trans Ultrason Ferroelectr Freq Control. 1999;46(3):511-6
references.pmid: 18238451
references.citation: Appl Phys Lett. 2009 Apr 20;94(16):162906
references.pmid: 19654880
references.citation: IEEE Trans Ultrason Ferroelectr Freq Control. 2012 Sep;59(9):1969-75
references.pmid: 23007769
references.citation: IEEE Trans Ultrason Ferroelectr Freq Control. 1991;38(1):40-7
references.pmid: 18267555
references.citation: IEEE Trans Ultrason Ferroelectr Freq Control. 2005 Apr;52(4):550-63
references.pmid: 16060502