A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2010; you can also visit the original URL.
The file type is
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 silverdoi:10.1063/1.2712795 pmid:17411212 fatcat:um44px7ccneh3dbtu2kb2oja2a