Amorphous Grain Boundary Phases in Ferrimagnetic (Mn, Zn)Fe2O4 and Ferroelectric PZT Ceramics

Thin intergranular amorphous phases in (Mn, Zn)Fe9O4, and Pb(Zr.52 Ti.48)O3 ceramics have been studied using electron microscopy and microanalysis. The Ca-rich amorphous phase in (Mn, Zn) Fe2O4 affects the magnetic permeability, and the Pb-rich amorphous phase is shown to affect the poling in PZT.