Our group, recently, successfully produced porous PZT
ceramics with excellent piezoelectric properties by combining
the particle-stabilized foams and the gelcasting technique [16].
However, there have been few investigations carried out to
understand the effects of foam composition on the properties
of porous PZT ceramics. In the present work, the concentration
of adsorbed amphiphilic molecules and pH values of final
suspension were investigated for structural, dielectric, and
piezoelectric properties such as foaming capacity, density,
microstructures, relative permittivity, etc.