A model for the structural hysteresis in poling and thermal depoling of PZT ceramics

Autor: George P. Simon, H. H. Law, J. Unsworth, P. L. Rossiter
Rok vydání: 1995
Předmět:
Zdroj: Journal of Materials Science. 30:4901-4905
ISSN: 1573-4803
0022-2461
Popis: A structural hysteresis associated with domain orientation during poling and thermal depoling of lead titanate zirconate (PZT) ceramics has been observed. The poled materials appear to lose their piezoelectric properties at a temperature somewhat below the Curie temperature and yet the domain configurations remain unchanged. The above phenomenon is successfully explained by a model which predicts that upon thermal depolarization, poled ceramics undergo transformation from the poled state into the antiferroelectric state before returning back to their original unpoled state.
Databáze: OpenAIRE