Piezoelectric ceramics are the general name of ferroelectric ceramics. With the effect of piezoelectric, the polycrystals polarization treatment takes place that is made through the mixing of oxide that includes titanium oxide, lead oxide, and zirconia oxide. All these things are done with the solid reaction and sintering. It works when the piezo crystal is placed between the two plates and when the material is perfectly balanced and does not conduct the electric current.
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