Thick film sol gel PZT transducer using dip coating. Gentry, K., Zara, J., Bu, S., Eom, C., & Smith, S. In Schneider, SC, Levy, M, & McAvoy, B., editors, 2000 IEEE ULTRASONICS SYMPOSIUM PROCEEDINGS, VOLS 1 AND 2, of ULTRASONICS SYMPOSIUM, pages 977-980, 2000. IEEE Ultrason, Ferroelect, & Frequency Control Soc. IEEE Ultrasonics Symposium, SAN JUAN, PR, OCT 22-25, 2000
abstract   bibtex   
A sot gel process has been used to develop a 30 mum thick PZT coating on a sapphire wafer. The sot gel film was removed and plated with platinum electrodes. The free-standing film had a free dielectric constant (epsilon (T)) of 820, a thickness-mode coupling coefficient (k(t)) of 0.17, a speed of sound (c) of 3700 m/s, and an acoustic impedance (Z) of 28.9 MRayls. The film resonated at 62 MHz. These results were similar to KLM simulation results. A sot gel transducer was built by first backing the film with 2.2 mm thick silver epoxy. The transducer resonated at 32, 64, and 92 MHz. At 32 MHz, the transducer had a bandwidth of 40%. The insertion loss at 47 MHz was -66 dB. A 32 MHz image was constructed with this transducer by off-line processing of 40 rf-lines of data.
@inproceedings{ ISI:000171881300210,
Author = {Gentry, KL and Zara, JM and Bu, SD and Eom, CB and Smith, SW},
Editor = {{Schneider, SC and Levy, M and McAvoy, BR}},
Title = {{Thick film sol gel PZT transducer using dip coating}},
Booktitle = {{2000 IEEE ULTRASONICS SYMPOSIUM PROCEEDINGS, VOLS 1 AND 2}},
Series = {{ULTRASONICS SYMPOSIUM}},
Year = {{2000}},
Pages = {{977-980}},
Note = {{IEEE Ultrasonics Symposium, SAN JUAN, PR, OCT 22-25, 2000}},
Organization = {{IEEE Ultrason, Ferroelect, \& Frequency Control Soc}},
Abstract = {{A sot gel process has been used to develop a 30 mum thick PZT coating on
   a sapphire wafer. The sot gel film was removed and plated with platinum
   electrodes. The free-standing film had a free dielectric constant
   (epsilon (T)) of 820, a thickness-mode coupling coefficient (k(t)) of
   0.17, a speed of sound (c) of 3700 m/s, and an acoustic impedance (Z) of
   28.9 MRayls. The film resonated at 62 MHz. These results were similar to
   KLM simulation results. A sot gel transducer was built by first backing
   the film with 2.2 mm thick silver epoxy. The transducer resonated at 32,
   64, and 92 MHz. At 32 MHz, the transducer had a bandwidth of 40\%. The
   insertion loss at 47 MHz was -66 dB. A 32 MHz image was constructed with
   this transducer by off-line processing of 40 rf-lines of data.}},
ISSN = {{1051-0117}},
ISBN = {{0-7803-6365-5}},
ORCID-Numbers = {{Bu, Sang Don/0000-0003-4883-1308}},
Unique-ID = {{ISI:000171881300210}},
}

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