Analysis of phase mixtures in ferroelectric ceramics by dielectric measurements

Publisher Website
Google Scholar
Abstract
At morphotropic phase boundaries of ferroelectric solid solutions a maximum in the electromechanical activity is found. This is essential for technical application of Pb(ZrxTi1_x)O3. It is demonstrated that at those phase boundaries the mixture of phases can be analysed by dielectric measurements. Thus an exact phase diagram near the morphotropic phase boundary can be obtained. The measurements also indicate that fluctuations of the Zr-concentration are jointly responsible for the coexistence-region at these phase boundaries.