The Electrodegradation Process in PZT Ceramics under Exposure to Cosmic Environmental Conditions.

ABSTRACT: Long-time electric field action on perovskite piezoelectric ceramic leads to chemical degradation. A new way to accelerate the degradation is the exposure of the ceramic to DC electric fields under a vacuum. A high-quality commercial piezoelectric material based on PbZr_1-xTi_xO₃ is used to study such impacts. To avoid the influence of ferroelectric properties and possible removal of oxygen and lead oxides during the degradation process, the experiments are in the temperature interval of 500 °C > T > T_C. Changes in resistance during the electrodegradation process is an electrically-induced deoxidation, transforming the ceramic into a metallic-like material. This occurs with an extremely low concentration of effused oxygen of 10¹⁶ oxygen

SUBMITTER: Lazar I 

PROVIDER: S-EPMC10180167 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature