The invention discloses a pentabasic piezoelectric
ceramic material containing
antimonite lead for a drive, consisting of a material expressed by a general formula of xPb ( Mg1 / 2W1 / 2)O3-yPb (Sb1 / 2Nb1 / 2)O3- ( 0.41-x-y)Pb ( Ni1 / 3 Nb2 / 3) O3-Pb0.59 (Zr z Ti 0.59-x )O3, in the formula, the x is more than or equal to 0.05 and less than or equal to 0.07, the y is more than 0 or equal to o and less than or equal to 0.04, and the z is more than or equal to 0.30 and less than or equal to 0.50. A preparing method comprises the
processing steps of ingredient synthesis, precalcination,
granulation, pressing, evacuation,
sintering, silver
calcination and polarization, and the
processing steps are simple, the
repeatability is good and the rate of finished products is high. Piezoelectric
ceramic made by the invention passes the test, the tested result shows that the
dielectric coefficient is between 600 and 850 pc / N, the
electromechanical coupling factor is between 0.55 and 0.75, and the relative
dielectric constant in
room temperature is between 3500 and 5000. The pentabasic piezoelectric
ceramic material can be used for preparing a vibration
transducer, a controller shell, a dynamic fuel injected
nozzle, a high-power
ultrasonic device, a high-temperature and high-frequency vibrometer, a high-temperature flowmeter, a high-temperature resistant swarming
buzzer, a high-temperature sensor, a drive and so on arranged in an automobile.