Mechanical and electrical responses of piezoelectric solids to conical indentation

S. Sridhar, A. E. Giannakopoulos, S. Suresh

Research output: Contribution to journalArticlepeer-review

39 Scopus citations

Abstract

Mechanical and electrical responses of piezoelectric materials subjected to shallow cone indentation were evaluated. Theoretical analysis based on normal indentation of a transversely isotropic, piezoelectric solid by a conducting steel cone with zero potential bias was compared to experimental results on lead zirconate (PZT-4) and barium titanate ceramics. The effect of the cone angle on the linear elastic assumptions and the depoling of the material below the indenter tip was investigated. The load-displacement and the time-current relations were proven to be specific to the piezoelectric properties of the material. Therefore, instrumented cone indentation can be a viable test in assessing the mechanical and electrical responses of piezoelectric materials in small volumes.

Original languageEnglish (US)
Pages (from-to)8451-8456
Number of pages6
JournalJournal of Applied Physics
Volume87
Issue number12
DOIs
StatePublished - Jun 15 2000
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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