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Title:	Influence of extrinsic contribution on the macroscopic properties of hard and soft lead zirconate titanate ceramics
Author:	Ochoa Guerrero, Diego A.; García García, José Eduardo; Pérez Pérez, Rafael; Albareda Tiana, Alfonso
Other authors:	Universitat Politècnica de Catalunya. Departament de Física; Universitat Politècnica de Catalunya. CEMAD - Caracterització Elèctrica de Materials i Dispositius
Abstract:	In 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 anomalous behavior, which is notably different from that of soft ceramics, not only in dielectric but also in piezoelectric and elastic responses. Hence, at room temperature their properties are thermally stable and the losses are unusually low. It is suggested that two mechanisms are present, with one mechanism inhibiting the other.
Abstract:	Peer Reviewed
Subject(s):	-Àrees temàtiques de la UPC::Enginyeria dels materials::Materials ceràmics -Electronic ceramics -Dielectric losses -Doping profiles -Elastic constants -Iron compounds -Lead compounds -Niobium compounds -Permittivity -Piezoceramics -Piezoelectricity -Thermal stability -Vacancies (crystal) -Ceràmiques electròniques
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Document type:	Article - Published version Article
Published by:	Institute of Electrical and Electronics Engineers (IEEE)
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