Piezoelectric ceramic material include powder, block, plate, disc, ring, tube with silver , gold and nickel electrode. Typical values of piezoelectric ceramic materials Material typesS101S103 S4X PropertiesItems S101-D S101-F Coupling Coefficients(%)Kp7268 Kt5046 K313836 Piezoelectric Charge Constants (PC/N)d33620650 d31-250-265 Piezoelectric voltage constants (X10-3Vm/N)g3321.817.4 g31-8.5-7.1 ...