✦ LIBER ✦

Evaluation of electromechanical coupling effect by microstructural modeling of domain switching in ferroelectrics

✍ Scribed by Qun Li; Andreas Ricoeur; Marco Enderlein; Meinhard Kuna

Publisher: Elsevier Science
Year: 2010
Tongue: English
Weight: 385 KB
Volume: 37
Category: Article
ISSN: 0093-6413
DOI: 10.1016/j.mechrescom.2010.03.003

No coin nor oath required. For personal study only.

✦ Synopsis

Poling processes of ferroelectrics by an electric field in addition to a mechanical load transverse to poling direction is simulated by microstructural FEM based on the nonlinear constitutive model of Huber et al. (1999). Observation of the evolution of domain switching shows that the compressive stress apparently enhances the degree of switching aligned with the poling direction. As a macroscopic response, the additional application of compressive stress significantly improves the electromechanical coupling effect. In the present numerical investigation, the enhancement of the coupling coefficient K 33 of BaTiO 3 exceeds 10%.

📜 SIMILAR VOLUMES

Domain switching effects in epitaxial fi

Domain switching effects in epitaxial films of ferroelectric bismuth titanate

✍ S.Y. Wu; M.H. Francombe; W.J. Takei 📂 Article 📅 1976 🏛 Elsevier Science 🌐 English ⚖ 213 KB

A study of mechanisms of domain switchin

A study of mechanisms of domain switching in a ferroelectric material via loading rate effect

✍ Ajit Achuthan; C.T. Sun 📂 Article 📅 2009 🏛 Elsevier Science 🌐 English ⚖ 778 KB

A method to characterize the strain-electric field butterfly behavior based on the underlying domain switching mechanism is first presented. The effect of loading rate on the different characteristics of the strain-electric field butterfly behavior is then studied. By comparing the changes in these

Modeling of micro- and nano-scale domain

Modeling of micro- and nano-scale domain recording by high-voltage atomic force microscopy in ferroelectric semiconductors

✍ Anna N. Morozovska; Eugene A. Eliseev 📂 Article 📅 2006 🏛 Elsevier Science 🌐 English ⚖ 335 KB

The equilibrium sizes of micro-and nano-domains caused by electric field of atomic force microscope tip in ferroelectricsemiconductor crystals have been calculated. The domain was considered as a prolate semi-ellipsoid with rather thin domain walls. For the first time we modified the Landauer model

Investigation on switching behaviour of

Investigation on switching behaviour of 90° ferroelectric domains in (Pb0.85Sm0.10) (Ti0.98Mn0.02)O3piezoelectric ceramics of ultra-high electromechanical anisotropy by the X-ray diffraction technique

✍ Y. W. Zeng; W. R. Xue; G. F. Fu 📂 Article 📅 1991 🏛 Springer 🌐 English ⚖ 470 KB

Finite difference time domain (FDTD) met

Finite difference time domain (FDTD) method for modeling the effect of switched gradients on the human body in MRI

✍ Huawei Zhao; Stuart Crozier; Feng Liu 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 757 KB

Numerical modeling of the eddy currents induced in the human body by the pulsed field gradients in MRI presents a difficult computational problem. It requires an efficient and accurate computational method for high spatial resolution analyses with a relatively low input frequency. In this article, a

Evaluation of the effect of thermal coup

Evaluation of the effect of thermal coupling in a temperature-limited power transistor switch on the distribution of stationary power dissipation in the transistors

✍ V. A. Belyakov; V. V. Togatov 📂 Article 📅 1980 🏛 Springer US 🌐 English ⚖ 405 KB