Journal ArticleDOI
Effects of Bias Electric Fields on the Non-linear Ferroelastic Behavior of Soft Lead Zirconate Titanate Piezoceramics
TLDR
In this article, the authors present systematic measurements of the non-linear depolarization and strain behavior of soft lead zirconate titanate piezoceramics over a wide range of compression loads and bias electric fields.Abstract:
Modern piezoelectric transducers normally have complicated structures and work under severe loading conditions. Due to their inherent domain-switching processes, the real response of piezoceramics under large-signal loading is dominated by a significantly non-linear behavior that is to be considered in reliability assessment and devices design. This paper presents systematic measurements of the non-linear depolarization and strain behavior of soft lead zirconate titanate piezoceramics over a wide range of compression loads and bias electric fields. An attempt has been made to explain the experimental findings by simultaneously taking into account the contributions of dielectric response, elastic deformation, irreversible domain switching, and piezoeffects.read more
Citations
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Journal ArticleDOI
Temperature-dependent ferroelastic switching of soft lead zirconate titanate
TL;DR: In this article, the longitudinal strain and polarization of a soft polycrystalline ferroelectric ceramic (lead zirconate titanate, PZT) were measured under uniaxial compressive stress at elevated temperatures utilizing a novel testing fixture.
Journal ArticleDOI
Room-temperature creep of soft PZT under static electrical and compressive stress loading
Dayu Zhou,Marc Kamlah +1 more
TL;DR: In this article, the experimental investigation of time-dependent effects of a commercial piezoceramic material at room temperature was conducted, where the material exhibited a creep behaviour as the external loads applied were kept constant for extended periods of time.
Journal ArticleDOI
Review of the Mechanical and Fracture Behavior of Perovskite Lead-Free Ferroelectrics for Actuator Applications
Kyle G. Webber,Malte Vögler,Neamul H. Khansur,B. Kaeswurm,John E. Daniels,Florian H. Schader +5 more
TL;DR: In this article, the authors discuss and review the current understanding of the mechanical behavior of large-strain perovskite lead-free ferroelectrics for use in actuators and provide recommendations for further work in this important field.
Journal ArticleDOI
Electromechanical poling of piezoelectrics
TL;DR: In this article, an electromechanical poling method, which makes use of the ferroelastic properties of ferroelectric perovskite structures, has been proposed to overcome the main obstacles in the development of high-performance piezoelectric materials for advanced devices.
Journal ArticleDOI
Comparison of the Temperature-Dependent Ferroelastic Behavior of Hard and Soft Lead Zirconate Titanate Ceramics
TL;DR: In this paper, the ferroelastic properties of a hard acceptor-doped lead zirconate titanate (PZT) ceramic are investigated between room temperature and 300°C.
References
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Journal ArticleDOI
Ferroelectric ceramics : History and technology
TL;DR: Ferroelectric ceramics have been the heart and soul of several multibillion dollar industries, ranging from high-dielectric-constant capacitors to later developments in piezoelectric transducers, positive temperature coefficient devices, and electrooptic light valves as mentioned in this paper.
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Direct evaluation of domain‐wall and intrinsic contributions to the dielectric and piezoelectric response and their temperature dependence on lead zirconate‐titanate ceramics
TL;DR: In this paper, an experimental method is introduced to directly and quantitatively determine the domain-wall and intrinsic contributions to the piezoelectric and dielectric responses of a ferroelectric material.
Journal ArticleDOI
The effect of uniaxial stress on the electro-mechanical response of 8/65/35 PLZT
TL;DR: In this article, the limitations of linear constitutive modeling and limitations of this composition of PLZT as an actuator material are examined, and the "yield" or ferroelastic switching stress is suggested as a good criteria for assessing the capability of actuator ceramics.
Journal ArticleDOI
Ferroelectric and ferroelastic piezoceramics – modeling of electromechanical hysteresis phenomena
Journal ArticleDOI
Nonlinear Deformation of Ferroelectric Ceramics
H.C. Cao,Anthony G. Evans +1 more
TL;DR: In this paper, a preliminary experimental investigation has been undertaken to study the relevant mechanical responses of Ferroelectric ceramics used in advanced actuator systems to high stresses and large deformations that may lead to nonlinearity and performance degradation.