Piezoelectric properties of (Pb, Ca) (Ti, Co, W)O3/epoxy composites

摘要: Abstract Interconnected porous (Pb0.76Ca0.24)(Ti0.96(Co0.5W0.5)0.04)O3 (CPT) ceramic/epoxy composites have been prepared by Burn Out Plastic Spheres(BURPS) method and vacuum impregnation of epoxy. The piezoelectric properties CPT/epoxy investigated as a function initial pore size CPT volume fraction. coefficient(d33), dielectric constant, voltage coefficient(g33), electromechanical coupling factor(Kt) thickness frequency coefficient(Nt) increase with fraction than size.