X-ray, dielectric and second harmonic generation (SHG) measurements we
re carried out for the system PbZrO3-Pb(Mg0.5W0.5)O-3 in order to refi
ne the phase diagram. A morphotropic phase boundary was established at
x = 0.08. Dielectric properties of the ceramic samples were measured
at frequencies 1 kHz-100 kHz and showed pronounced relaxer behaviour o
f solid solutions.