Fractal cluster modeling of the fatigue behavior of lead zirconate titanate

Shashank Priya, Hyeoung Woo Kim, Jungho Ryu, Kenji Uchino, Dwight Viehland

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


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 languageEnglish (US)
Pages (from-to)1625-1627
Number of pages3
JournalApplied Physics Letters
Issue number9
StatePublished - Mar 4 2002
Externally publishedYes


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