The piezoelectric effect is that when some dielectrics are deformed by an external force in a certain direction, polarization occurs inside, and positive and negative opposite charges appear on the two opposite surfaces thereof. When the external force is removed, it will return to the uncharged sta

PZT piezoelectric ceramics are polycrystals obtained by sintering lead dioxide, lead zirconate and lead titanate at a high temperature of 1200°C. It has a positive piezoelectric effect and a negative piezoelectric effect. PZT piezoelectric ceramics (lead zirconate titanate): where P is the abbreviat

The preparation process of alumina piezo ceramics mainly includes three aspects: preparation of alumina powder, formation of alumina ceramics and preparation of sintered alumina ceramics. At present, the preparation process of the alumina powder includes following aspects: (1) an hydrolysis method.

piezoelectric effect and dielectric effect of piezoelectric ceramic The piezoelectric effect is that when some dielectrics are deformed by an external force in a certain direction, polarization occurs inside, and positive and negative opposite charges appear on the two opposite surfaces thereof. Wh