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Article Dans Une Revue Journal of Applied Physics Année : 2010

Nonlinearity and scaling behavior in a soft lead zirconate titanate piezoceramic

Résumé

Lead oxide-based ferroelectrics, represented by lead zirconate titanate [Pb(Zr,Ti)O3] or PZT), are the most widely used materials for piezoelectric actuators, sensors, and transducers due to their excellent piezoelectric properties. Most of these piezoelectric materials are employed under a variety of strains (stress, electrical field, and temperature). It would thus be interesting to predict their behaviors under different excitations without having to perform too much experimental work, i.e., just carry out a single experiment and still be able to provide the other experimental values. The purpose of this paper has thus been to propose several behavioral laws linking the electrical field, temperature and mechanical stress. The first law rendered it possible to express the mechanical stress by an equivalent electric field [ΔE≡αΔT×P(E,T0)]. Subsequently, a law linking the electrical field and temperature {ΔE≡[2β×P(E,θ0)]×Δθ} was proposed. From these two laws, a third law was identified reflecting the mechanical stress as an equivalent temperature; each expressed by a temperature equivalent stress (T≡δ×Δθ). After experimental validation of these laws, the mapping could be extended in order to predict the polarization behavior in the tensile stress zone as well as that as a function of the negative temperature.

Domaines

Matériaux
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Dates et versions

hal-04283059 , version 1 (13-11-2023)

Identifiants

Citer

Abdelowahed Hajjaji, Daniel Guyomar, Samira Touhtouh, Sebastien Pruvost, Yahia Boughaleb, et al.. Nonlinearity and scaling behavior in a soft lead zirconate titanate piezoceramic. Journal of Applied Physics, 2010, 108 (6), ⟨10.1063/1.3486510⟩. ⟨hal-04283059⟩
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