Electrical fracture toughness for electrically conductive deep notches driven by electric fields in depoled lead zirconate titanate ceramics

Tianhong Wang; Tong Yi Zhang

doi:10.1063/1.1427437

Electrical fracture toughness for electrically conductive deep notches driven by electric fields in depoled lead zirconate titanate ceramics

Tianhong Wang^*, Tong Yi Zhang

^*Corresponding author for this work

Department of Mechanical and Aerospace Engineering

Research output: Contribution to journal › Journal Article › peer-review

38 Citations (Scopus)

Abstract

This study demonstrates that electric fields can fracture depoled lead zirconate titanate ceramics and that the concepts of fracture mechanics can be used to measure the electrical fracture toughness. The electrical fracture toughness (G_C^E=263±35 N/m) is about nine times higher than the mechanical fracture toughness (G_IC^M=30.4±3.9 N/m). The highly electrical fracture toughness arises from the greater energy dissipation around the conductive sharp notch tip under purely electric loading, which is impossible under mechanical loading in brittle depoled ceramics.

Original language	English
Pages (from-to)	4198-4200
Number of pages	3
Journal	Applied Physics Letters
Volume	79
Issue number	25
DOIs	https://doi.org/10.1063/1.1427437
Publication status	Published - 17 Dec 2001

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title = "Electrical fracture toughness for electrically conductive deep notches driven by electric fields in depoled lead zirconate titanate ceramics",

abstract = "This study demonstrates that electric fields can fracture depoled lead zirconate titanate ceramics and that the concepts of fracture mechanics can be used to measure the electrical fracture toughness. The electrical fracture toughness (GCE=263±35 N/m) is about nine times higher than the mechanical fracture toughness (GICM=30.4±3.9 N/m). The highly electrical fracture toughness arises from the greater energy dissipation around the conductive sharp notch tip under purely electric loading, which is impossible under mechanical loading in brittle depoled ceramics.",

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AU - Wang, Tianhong

AU - Zhang, Tong Yi

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N2 - This study demonstrates that electric fields can fracture depoled lead zirconate titanate ceramics and that the concepts of fracture mechanics can be used to measure the electrical fracture toughness. The electrical fracture toughness (GCE=263±35 N/m) is about nine times higher than the mechanical fracture toughness (GICM=30.4±3.9 N/m). The highly electrical fracture toughness arises from the greater energy dissipation around the conductive sharp notch tip under purely electric loading, which is impossible under mechanical loading in brittle depoled ceramics.

AB - This study demonstrates that electric fields can fracture depoled lead zirconate titanate ceramics and that the concepts of fracture mechanics can be used to measure the electrical fracture toughness. The electrical fracture toughness (GCE=263±35 N/m) is about nine times higher than the mechanical fracture toughness (GICM=30.4±3.9 N/m). The highly electrical fracture toughness arises from the greater energy dissipation around the conductive sharp notch tip under purely electric loading, which is impossible under mechanical loading in brittle depoled ceramics.

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UR - https://openalex.org/W2011728308

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ER -

Electrical fracture toughness for electrically conductive deep notches driven by electric fields in depoled lead zirconate titanate ceramics

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