Japanese Journal of Applied Physics · 1983 · 20 citations · 0 references
Materials ScienceMaterials EngineeringElectrical EngineeringEngineeringCeramic MaterialPorous PbConventional PowderCeramic TechnologyCeramics MaterialsPiezoelectric MaterialsPiezoelectric PropertiesPiezoelectric MaterialPiezoelectricityCeramic PowdersElectrical PropertiesPorous PztMicrostructure
Porous Pb(Zr 0.53 Ti 0.47 )O 3 ceramics with three dimensionally interconnected structure were prepared by modifications of conventional powder sintering methods. The piezoelectric and elastic properties of the porous PZT were investigated by related with pore structures such as porosity and pore size. As porosity increased, permittivity decreased linearly and piezoelectric coefficient d 33 increased gradually, so the voltage output coefficient g 33 increased. The g 33 value was 200–300×10 -3 (Vm/N) at the porosity of 0.65.