Articles de revista
Enviaments recents
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Dielectric and piezoelectric nonlinear properties of slightly textured lead barium niobate ceramics
(American Institute of Physics (AIP), 2019-01-09)
Article
Accés restringit per política de l'editorialDielectric and piezoelectric responses of slightly textured, lead barium niobate ceramics are studied. The designed morphotropic phase boundary composition (Pb0.63Ba0.37Nb2O6) shows considerable nonlinear dielectric and ... -
Assessment of the functional properties stability in (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 piezoceramics: huge dielectric and piezoelectric nonlinearity
(2019-02-05)
Article
Accés restringit per política de l'editorialThe (Ba,Ca)(Zr,Ti)O3 ceramic system has received special attention in recent years because it may lead to promising lead-free piezoceramics. However, the stability of the functional properties of these materials is an ... -
High-precision time-of-flight determination algorithm for ultrasonic flow measurement
(2019)
Article
Accés obertCommercial time-of-flight (TOF) ultrasonic flowme- ters are rapidly expanding in the general industry. Among the different techniques that can be applied to determine the TOF of ultrasonic waves, the cross-correlation ... -
Bifurcation patterns in homogeneous area-preserving piecewise-linear maps
(2018-11-26)
Article
Accés restringit per política de l'editorialThe dynamical behavior of a family of planar continuous piecewise linear maps with two zones is analyzed. Assuming homogeneity and preservation of areas we obtain a canonical form with only two parameters: the traces of ... -
Suppression of undesired attractors in a self-oscillating H-bridge parallel resonant converters under zero current switching control
(2018-11-08)
Article
Accés restringit per política de l'editorialResonant converters under zero current switching control strategy can exhibit coexistence of attractors, making it difficult the startup of the system from zero initial conditions. In this paper, the problem of multiple ... -
Nonlinear dynamic modeling and analysis of self-oscillating H-bridge parallel resonant converter under zero current switching control: unveiling coexistence of attractors
(2018-12-14)
Article
Accés restringit per política de l'editorialThis paper deals with the global dynamical analysis of an H-bridge parallel resonant converter under a zero current switching control. Due to the discontinuity of the vector field in this system, sliding dynamics may take ... -
Influence of extrinsic contribution on the macroscopic properties of hard and soft lead zirconate titanate ceramics
(Institute of Electrical and Electronics Engineers (IEEE), 2008-12)
Article
Accés obertIn this work, the contribution of the extrinsic effect to the macroscopic properties in soft and hard lead zirconate titanate ceramics is directly evaluated. Close to the room temperature, poled hard ceramics show an ... -
Nonlinear behavior in a piezoelectric resonator: a method of analysis
(Institute of Electrical and Electronics Engineers (IEEE), 2000-07)
Article
Accés obertTheories used for understanding nonlinear behavior of piezoelectric resonators are usually only valid for a given range of amplitudes. Thus, important discrepancies can sometimes be observed between theory and experiment. ... -
Unexpected dielectric response in lead zirconate titanate ceramics: The role of ferroelectric domain wall pinning effects
(2007-07)
Article
Accés obertTemperature dependent dielectric response has been measured in Pb(Zr1-xTix)O-3 ceramics. Samples of different compositions (x=0.40, 0.47, and 0.60), pure and doped with Nb-or Fe, were studied at temperatures between 15 and ... -
Optimization of elastic nonlinear behavior measurements of ceramic piezoelectric resonators with burst excitation
(Institute of Electrical and Electronics Engineers (IEEE), 2007-10)
Article
Accés obertA system of nonlinear measurement and nonlinear elastic characterization of resonators is presented, which increases the possibilities and characteristics of the other classic nonlinear characterization methods. This ... -
Light-induced capacitance tunability in ferroelectric crystals
(2018-07-05)
Article
Accés restringit per política de l'editorialThe remote controlling of ferroic properties with light is nowadays a hot and highly appealing topic in materials science. Here, we shed light on some of the unresolved issues surrounding light–matter coupling in ferroelectrics. ... -
Enhancement of piezoelectric properties stability of submicron-structured piezoceramics obtained by spark plasma sintering
(Elsevier, 2018-06-19)
Article
Accés restringit per política de l'editorialGrain-size effect on functional properties of piezoceramics is nowadays an important topic due to the potential applications of these materials at the submicron scale. In this context, we explore the effect of the grain ...
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