Effect of Ferroelectric Domain on Fatigue Fracture Behavior in Piezoelectric Ceramics

Motonori Nakamura; Chiharu Sakaki; Masahiko Kimura; Takehiro Konoike; Hiroshi Takagi; Kaori Shirakihara; Hirohisa Kimachi; Kesisuke Tanaka

doi:10.4028/www.scientific.net/KEM.566.3

Paper Titles

Preface

Effect of Ferroelectric Domain on Fatigue Fracture Behavior in Piezoelectric Ceramics
p.3

Influence of Film Texture on Reliability of Sol-Gel Derived PZT Thin-Film Capacitors
p.7

Polarization Mechanism of Fine-Grained BaTiO₃ Ceramics at High Temperature Region
p.12

Change in Electric Field Distribution in Non-Reducing BaTiO₃ Based-Dielectric Layer Loaded at High Temperature
p.16

Relation between Electro-Optic Effect and Dielectric Permittivity of Ba_0.5Sr_0.5TiO₃ Thin Films
p.20

Crystal Growth and Characterization of (Bi_0.5Na_0.5)TiO₃-BaTiO₃ Single Crystals Obtained by the Top-Seeded Solution Growth Method under High-Pressure Oxygen Atmosphere
p.25

Ferroelectric Properties and Domain Clamping of (Bi_0.5Na_0.5)TiO₃ Single Crystals Grown under High-Oxygen-Pressure Atmosphere
p.29

Grain Size Dependence of the Microstructure and Dielectric Properties of Potassium Niobate-Barium Titanate Ceramics
p.34

HomeKey Engineering MaterialsKey Engineering Materials Vol. 566Effect of Ferroelectric Domain on Fatigue Fracture...

Effect of Ferroelectric Domain on Fatigue Fracture Behavior in Piezoelectric Ceramics

Abstract:

Fatigue tests on lead zirconate titanate (PZT) were performed by using single-edge-V-notched specimens under cyclic mechanical loading with or without superposition of a DC electric field. Fatigue life was prolonged by applying a DC electric field to the PZT ceramics. To estimate the domain contribution, fatigue tests on barium strontium titanate (BST) ceramics in both ferroelectric and paraelectric phase were carried out. The fatigue life of the ferroelectric phase was much shorter than that of the paraelectric phase. Comparing the fatigue lives of two PZT ceramics with different values of coercive electric field (E_c) revealed that the fatigue life of the PZT with higher E_c is about one order of magnitude longer than that with lower E_cwhen the stress-intensity factor of fatigue test is low. It is therefore concluded that non-180°domain switching probably deteriorates the fatigue life of ferroelectric ceramics.

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Key Engineering Materials (Volume 566)

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3-6

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.566.3

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Online since:

July 2013

Authors:

Motonori Nakamura, Chiharu Sakaki, Masahiko Kimura, Takehiro Konoike, Hiroshi Takagi, Kaori Shirakihara, Hirohisa Kimachi, Kesisuke Tanaka

Keywords:

Compliance, Crack, Domain, Fatigue, Ferroelectric, Paraelectric, PZT, Strength

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