Journal ArticleDOI
Dynamic Observation of Crack Propagation in Piezoelectric Multilayer Actuators
Atsushi Furuta,Kenji Uchino +1 more
TLDR
In this paper, a crack propagation in multilayer piezoelectric actuators made of Pb((Ni1/3Nb2/3), Ti, Zr)O3 ceramics with an interdigital electrode configuration was observed dynamically under an applied cyclic electric field using charge coupled device microscopy.Abstract:
Crack propagation in multilayer piezoelectric actuators made of Pb((Ni1/3Nb2/3), Ti, Zr)O3 ceramics with an interdigital electrode configuration was observed dynamically under an applied cyclic electric field using charge coupled device microscopy. The crack was observed only under a high electric field, and it healed under zero field. The crack was initiated at the internal electrode edge and propagated from the electrode edge in three directions. The electric-field-induced displacement was measured simultaneously with the propagation. The displacement of the multilayer actuator became gradually smaller and asymmetric with respect to the sign of the field with increased driving cycle.read more
Citations
More filters
Journal ArticleDOI
Perspective on the Development of Lead-free Piezoceramics
TL;DR: In this paper, general guidelines for the development of lead-free piezoelectric ceramics are presented, ranging from atom to phase diagram, and the current development stage in lead free piezoceramics is then critically assessed.
Journal ArticleDOI
Microscale acoustofluidics: Microfluidics driven via acoustics and ultrasonics
James Friend,Leslie Y. Yeo +1 more
TL;DR: In this article, the use of acoustic fields, principally ultrasonics, for application in microfluidics is reviewed, and the abundance of interesting phenomena arising from nonlinear interactions in ultrasound that easily appear at these small scales is considered, especially in surface acoustic wave devices that are simple to fabricate with planar lithography techniques.
Journal ArticleDOI
Transferring lead-free piezoelectric ceramics into application
TL;DR: In this article, a figure of merit analysis for key devices is presented and used to contrast lead-containing and lead-free piezoceramics for demanding applications with high reliability, displacements and frequency as well as a wide temperature range.
Journal ArticleDOI
High-Strain Lead-free Antiferroelectric Electrostrictors
Shan-Tao Zhang,Alain Brice Kounga,Wook Jo,Christine Jamin,Klaus T. P. Seifert,Torsten Granzow,Jürgen Rödel,Dragan Damjanovic +7 more
TL;DR: In this paper, the use of electrostrictive materials for electric-field induced strain has been largely overlooked, but it has been shown that such materials around a ferroelectric-antiferroelectric transition are capable of providing high strains over a wide temperature regime.
Book ChapterDOI
Fracture of piezoelectric ceramics
TL;DR: In this article, the fracture behavior of piezoelectric ceramics under combined electrical and mechanical loading has been among the most prevalent research topics, and four types of nonlinear approaches considered are: electrostriction, domain switching, domain wall kinetics, and polarization saturation at a crack tip.
References
More filters
Journal Article
Electrostrictive actuators: materials and applications.
TL;DR: In this paper, les ceramiques a base de titanate zirconate de plomb (PZT) et de niobate de magnesium and de PLomb (PMN) are presented.
Proceedings ArticleDOI
Piezoelectric and Electrostrictive Actuators
TL;DR: A review of recent developments in the areas of piezoelectric and electrostrictive actuators can be found in this article, where historical and theoretical background, newly developed materials, applications and future problems are discussed.
Journal ArticleDOI
A Fast Response Piezoelectric Actuator for Servo Correction of Systematic Errors in Precision Machining
E. Kouno,P.A. McKeown +1 more
TL;DR: In this article, a piezoelectric actuator was developed for use in the on-line correction of systematic machine errors, which would otherwise cause errors in workpieces on metal cutting machines.
Journal ArticleDOI
The Effect of Repeated Operation on Electrochromism in an All-Solid-State Device Using Li-Doped MgF 2 Thin-Film Electrolyte
TL;DR: In this article, a thin-film electrochromic device consisting of WO3 and Li-doped MgF2 films was fabricated, which exhibited excellent coloration and bleaching response (coloration period: 100 ms, bleaching period: 200 ms).
Journal ArticleDOI
Internal Electrode Piezoelectric Ceramic Actuator
Sadayuki Takahashi,Atsushi Ochi,Masatomo Yonezawa,Takeshi Yano,Takeshige Hamatsuki,Izumu Fukui +5 more
TL;DR: In this article, an internal electrode multilayer piezoelectric ceramic actuator element has been investigated, which has the same area as the element cross section area and no active part, so that it shows strain/field characteristics similar to plain PbTiO3 ceramics.