Nonlinear stress-strain behaviour and stress relaxation of PZFNTU ceramics in the three-point bending test

Haitao Huang, Peter Hing

Research output: Journal article publicationJournal articleAcademic researchpeer-review

3 Citations (Scopus)


A nonlinear stress-strain behaviour at room temperature was observed in the ferroelectric Pb(Zr0.58Fe0.20Nb0.2Ti0.02)0.994U0.006 (PZFNTU) ceramic beams in the three-point bending test. This nonlinear phenomenon is attributed to the ferroelectric domain reorientation during bending. A stress relaxation behaviour which obeys perfectly a logarithmic time law has also been found. This relation is similar to the ageing of the dielectric constant. A Weibull analysis showed that the batch of the sintered PZT ceramic samples tested had a high Weibull modulus and a high flexural strength.
Original languageEnglish
JournalJournal of Physics D: Applied Physics
Issue number3
Publication statusPublished - 7 Feb 2000
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

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