SURFACE-AREA, XRD, AND FTIR SPECTRAL CHARACTERIZATION OF CHEMICALLY DERIVED PBTIO3 CERAMICS

The Fourier transform infrared (FTIR) spectroscopic technique has been used to follow the reaction sequence during thermal treatment of the precursor powders of a modified lead titanate composition. The precursor powders were prepared by three different techniques-gel processing, chemical coprecipitation, and attrition milling. X-ray diffraction (XRD) and surface area measurements on powders calcined at various temperatures were also conducted to monitor the structural changes and the thermal reactivity of the powders. The results suggest that FTIR is a relatively simple and more sensitive technique than XRD for the characterization of these powders at various stages of reaction. © 1991 Academic Press, Inc.