L. Burianova et al., Piezoelectric, dielectric and pyroelectric properties of 0-3 ceramic-polymer composites, FERROELECTR, 241(1-4), 2000, pp. 1703-1710
The circular samples of composites were made from PZT ceramic gains dispers
ed in polymers (epoxy or rubber). Pressure dependencies of the hydrostatic
piezoelectric coefficient d(h) and permittivity epsilon were measured in th
e range up to 60 MPa. The hydrostatic strain coefficient d(h), the hydrosta
tic voltage coefficient g(h) and figure of merit d(h).g(h) were determined
using the static method. The pressure dependence of the hydrostatic coeffic
ients was measured for several successive cycles. Experimental dependence o
f the charge on pressure and temperature was fitted by multi parameter func
tion. The pressure and temperature dependencies of the hydrostatic d(h) and
pyroelectric p(3) coefficients were determined. It was found that the hydr
ostatic strain coefficient d(h) and hydrostatic voltage coefficient g(h) de
creased and pyroelectric coefficient p(3) increased with pressure at consta
nt temperature.