2019_programme: GROWING PIEZOCOMPOSITE UNDERWATER TRANSDUCERS BY FREEZE-CASTING

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  • Session: 16. Advances in acoustic measurement systems: Technologies and applications
    Organiser(s): Tesei Alessandra
  • Lecture: GROWING PIEZOCOMPOSITE UNDERWATER TRANSDUCERS BY FREEZE-CASTING
    Paper ID: 943
    Author(s): Hunter Alan, Kurt Polat, Zhang Yan, Roscow James, Bowen Chris
    Presenter: Rymansaib Zuhayr
    Presentation type: oral
    Abstract: Piezocomposite materials are used in many underwater transducers due to their desirable acoustic performance. The conventional method for creating 1-3 piezocomposite is to dice-and-fill a monolithic piezoelectric material using a precision saw. This is expensive and wasteful. We have used a new technique, known as freeze-casting, to grow natural 1-3 piezocomposite material by freezing a solution of piezoelectric powder, polymer, and water, followed by freeze-drying and sintering. Underwater transducers made from these freeze-cast piezocomposites have been built and tested. This new approach has the potential to be cheaper and more versatile than the conventional method.
  • Corresponding author: Dr Hunter Alan
    Affiliation: University of Bath
    Country: United Kingdom
    e-mail:

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