Piezoelectric material properties were optimized to develop materials for an ultrasonic vibrator targeting a high vibration efficiency. Herein, novel materials were developed using a composition represented by 0.08Pb(NiNb)O-0.07Pb(MnNb)O-0.85Pb(ZrTi)O + 0.3 wt.% CuO + 0.3 wt.% FeO with 0.3 wt.% SbO doping. A ceramic shape with a thickness of 2 mm was optimized using finite element analysis software, and high values of coupling factors (0.54) and mechanical quality factors (1151) were obtained. This ceramic was used to fabricate a bio-beauty device (frequency = 1 MHz), and the manufactured ultrasonic vibrator indicated that the actuator oscillated with the maximum amplitude at a frequency of 1.06 MHz.
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| http://dx.doi.org/10.3390/mi13020158 | DOI Listing |
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