Abstract
The fatigue behavior of lead zirconate titanate ceramics (PZT) has been studied under electrical and mechanical drives. Piezoelectric fatigue was studied using a mechanical method. Under ac mechanical drive, hard and soft PZTs showed an increase in the longitudinal piezoelectric constant at short times, reaching a maximum at intermediate times. Systematic investigations were performed to characterize the electrical fatigue behavior. A decrease in the magnitude of the remanent polarization was observed, which was relatively high for soft PZT. The dynamics of fatigue have been shown to scale to a hierarchical relaxation process, and this is typical of random field systems.
Original language | English (US) |
---|---|
Pages (from-to) | 1625-1627 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 80 |
Issue number | 9 |
DOIs | |
State | Published - Mar 4 2002 |
Externally published | Yes |