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A lead-free piezoelectric transformer in radial vibration modes
2007
Review of Scientific Instruments
In this study, a disk-shaped piezoelectric transformer was fabricated using lead-free ͑K,Na͒NbO 3 -based ceramics with high mechanical quality factor. The transformer can operate in the fundamental or the third radial vibration mode. The transformer is poled along the thickness direction. The top surface is covered by ring/dot silver electrodes separated by an annular gap which serve as the input and output parts of the transformer, respectively. The bottom surface, fully covered with a silver
doi:10.1063/1.2712795
pmid:17411212
fatcat:um44px7ccneh3dbtu2kb2oja2a