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An investigation on electric field-induced microcracking and toughening in piezoelectric crystals

  • Z. Xu
  • , Y. Zhang

    Research output: Journal Publications and ReviewsRGC 22 - Publication in policy or professional journal

    Abstract

    Electric-field-induced microcracking and toughening in Pb(Mg 1/3Nb2/3)O3-PbTiO3 piezoelectric single crystals during electrically cycling were investigated using in situ transmission electron microscopy (TEM). The crack growth was found to depend on both cycling field strength and cycle number. The deflection of microcrack caused by defect was observed. The toughening induced by domain switching and formation of new domains around microcrack tip to resist the crack growth was directly demonstrated.
    Original languageEnglish
    Pages (from-to)111-118
    JournalCeramic Transactions
    Volume169
    DOIs
    Publication statusPublished - 2005
    Event106th Annual Meeting of the American Ceramic Society - Indianapolis, United States
    Duration: 18 Apr 200421 Apr 2004

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