Results 1 to 10 of about 57,464 (195)

Study of Mechanical Properties and Thermal Conduction of Polymer/Ceramic Nanocomposites [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2020
A composite materials were prepared using a polymeric blend of epoxy resin and unsaturated polyester as a matrix material, and using a nanoceramic powder Lead Zirconium Titanate as a reinforcement material in different adding ratios( 2wt % & 6wt ...
Ahmad AL - Falahi
doaj   +1 more source

Critical temperature below the Curie temperature of ferroelectric ceramics PZT

open access: yesJournal of Advanced Dielectrics, 2021
The article presents the results of research the pre-transitional features of the behavior of solid solutions based on lead zirconate-titanate. The presence of a “special” critical temperature Td on the temperature dependences of the permittivity 𝜀(T ...
D. V. Kuzenko
doaj   +1 more source

PEROVSKITES AND OTHER FRAMEWORK STRUCTURE CRYSTALLINE MATERIALS (BOOK' FIRST PAGES AND PREFACE)

open access: yesMaterials and Devices, 2021
Perovskites are among the most famous materials due to their exceptional properties: they present nearly all existing types of interesting properties, in particular as ferroics or multiferroics, they may be insulators, (super)conductors, or ...
Saint-Grégoire P., Smirnov M.
doaj   +1 more source

Maximizing the Value of Decay Rate for a Vibrated Beam [PDF]

open access: yesEngineering and Technology Journal, 2018
This paper presents design controllers by using control strategies and (LMI) in order to attenuate the vibrations of a beam. An Aluminum beam with fixed-fixed configuration was chosen as an application example of (AVC) of structure.
Sherko Ibrahem, Tahseen Othman
doaj   +1 more source

Piezoelectric Actuators for Tactile and Elasticity Sensing

open access: yesActuators, 2020
Piezoelectric actuators have achieved remarkable progress in many fields, being able to generate forces or displacements to perform scanning, tuning, manipulating, tactile sensing or delivering functions.
Javier Toledo   +3 more
doaj   +1 more source

Characterisation of sol-gel PZT films on Pt-coated substrates [PDF]

open access: yes, 1995
A conventional sol-gel process was used to spin-cast PZT films on oxidized Si wafers coated with sputtered Pt layers. After annealing at 550 degrees C-800 degrees C, the resulting perovskite-type PZT films showed different textures and surface ...
Cobianu, C.   +2 more
core   +2 more sources

Development of Cutting Device with Enlargement Mechanism of Displacement

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2008
A new cutting device driven by an enlargement mechanism with a PZT drive has been developed to realize positioning the cutting tool from nm to mm. In this study, the mechanical principal of a newly developed enlargement mechanism consisting of fluid ...
Yoshitaka MORIMOTO   +3 more
doaj   +1 more source

Electric degradation in PZT piezoelectric ceramics under a DC bias

open access: yesScience and Engineering of Composite Materials, 2020
In order to accurately evaluate the service life and failure mechanism of the PZT piezoelectric ceramics, the electric degradation process of the PZT ceramics with and sans doping under a DC voltage of 380V, in a surrounding environment of 90∘C and 85 ...
Zhang Jing   +4 more
doaj   +1 more source

Polarization states of polydomain epitaxial Pb(Zr1-xTix)O3 thin films and their dielectric properties [PDF]

open access: yes, 2004
Ferroelectric and dielectric properties of polydomain (twinned) single-crystal Pb(Zr1-xTix)O3 thin films are described with the aid of a nonlinear thermodynamic theory, which has been developed recently for epitaxial ferroelectric films with dense ...
B. Jaffe   +6 more
core   +3 more sources

Misfit strain dependence of ferroelectric and piezoelectric properties of clamped (001) epitaxial Pb(Zr0.52,Ti0.48)O3 thin films \ud [PDF]

open access: yes, 2011
A study on the effects of the residual strain in Pb(Zr0.52Ti0.48)O3 (PZT) thin films on the ferroelectric and piezoelectric properties is presented. Epitaxial (001)-oriented PZT thin film capacitors are sandwiched between SrRuO3 electrodes. The thin film
Dekkers, Jan M.   +8 more
core   +3 more sources

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