Electrical Properties of Ultrasonic Nozzle using Multilayer Low Temperature Sintering Pb(Mn_(1/3)Nb_(2/3))O_3-Pb(Ni_(1/3)Nb_(2/3)) O_3-Pb(Zr_(0.50)Ti_(0.50))O_3 Ceramics

摘要

The multilayer ring type piezoelectric vibrator was manufactured using low temperature sintering Pb(Mn_(1/3)Nb_(2/3))O_3-Pb(Ni_(1/3)Nb_(2/3))O_3-Pb(Zr_(0.50)Ti_(0.50))O_3 (abbreviate ed as PMN-PNN-PZT) piezoelectric ceramic added Na_2CO_3 and Li_2CO_3 as sintering aids. And then, ultrasonic nozzle was fabricated using the vibrator. The driving current and driving power of the ultrasonic nozzle showed the stable values as 260 mA and 8.1W after 10 min operation. No problems were occurred even under long time operation because the surface temperature of the ceramic actuator kept the maximum value of 26 deg C in the experiment.