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No linealidad del efecto piezoeléctrico directo d33 en cerámicas PZT

Direct piezoelectric effect d33 non-linearity in PZT ceramics
Authors: Pérez Pérez, Rafael; Albareda Tiana, Alfonso; Pérez Codina, Estel; García García, José Eduardo; Tiana Alsina, Jordi; Gorri Ochoa, José Antonio;

handle: 2117/483

No linealidad del efecto piezoeléctrico directo d33 en cerámicas PZT

Abstract

Se ha implementado una nueva técnica de medida aplicando un esfuerzo uniaxial sobre la muestra y midiendo la carga generada. Se aplica un esfuerzo suficientemente intenso para producir efectos no lineales, y se analiza la respuesta no sólo en función de la amplitud del esfuerzo sino de su valor instantáneo. Se ha observado que el coeficiente d33 aumenta siempre linealmente con la amplitud, tanto en las cerámicas PZT comerciales blandas como en las duras, en este último caso al revés de lo que ocurre con su comportamiento dieléctrico, elástico e incluso piezoeléctrico inverso (d31). Se observa también el decrecimiento lineal de d33 al aumentar el esfuerzo Tbias. La relación entre los coeficientes d33 imaginario y real en los materiales blandos es la esperada según el modelo de Rayleigh, pero no así en los duros, tal como ocurre también en el caso dieléctrico.

Peer Reviewed

Country
Spain
Keywords

Piezoelectric materials, Piezoelectricity, No linealidad, Clay industries. Ceramics. Glass, ceramics, Non-linearity, :70 Mechanics of particles and systems ::70K Nonlinear dynamics [Classificació AMS], :Física::Acústica::Ultrasons [Àrees temàtiques de la UPC], Classificació AMS::70 Mechanics of particles and systems ::70K Nonlinear dynamics, No-linealitat -- Física, Piezoelectricidad, Àrees temàtiques de la UPC::Física::Acústica::Ultrasons, Cerámicas, piezoelectricity, Àrees temàtiques de la UPC::Física::Física de l’estat sòlid::Dielèctrics, Efecto directo, :Física::Física de l’estat sòlid::Dielèctrics [Àrees temàtiques de la UPC], :74 Numerical analysis::74F Coupling of solid mechanics with other effects [Classificació AMS], efecto directo, TP785-869, cerámicas, direct effect, piezoelectricidad, Classificació AMS::74 Numerical analysis::74F Coupling of solid mechanics with other effects, Piezoelectricitat

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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