Non-ferroelectric pyroelectric: Piezoelectric glass ceramics

Abstract

Abstract In many glass systems where the recrystallization processes of devitrification have been extensively studied, the crystalline phases produced have symmetries consistent with both pyroelectric and piezoelectric properties in the individual crystallite. Heretofore, however, except for the ferroelectric glass ceramic, where preferred orientation and the associated macroscopic piezoelectric and pyroelectric properties were induced by an electric poling of the ferroelectric domain texture after the recrystallization process, little attention appears to have been given to other possible techniques for inducing a proper orientation texture.