Estudio de la estabilidad de fase en SrZrO3 en función de la temperatura de sinterizacion

R.E. ALONSO; J. DE FRUTOS; M.A. DE LA RUBIA; M. TAYLOR; A. LÓPEZ-GARCÍA

BOLETíN DE LA SOCIEDAD ESPAñOLA DE CERáMICA Y VIDRIO

Sociedad Española de Cerámica y Vidrio

Lugar: Madrid; Año: 2007 vol. 46 p. 311 - 315

0366-3175

Recent studies of the phase transitions in SrZrO3 using X-ray and Neutron Diffraction , together with Perturbed Angular Correlation spectroscopies reveal that the phase diagram of this compound is not simple. The temperatures of the transitions appear to be highly dependent of the thermal history. In this work we present for the first time a study of the phase stability as a function of the annealing using the Impedance Spectroscopy technique. This work will focus on the Pnma -> Imma (second order) and the Imma -> I4mcm (first order) phase transitions, previously reported at 750º C and 840º C respectively.