In-situ structural investigations of ferroelasticity in soft and hard rhombohedral and tetragonal PZT

• DOI: 10.1063/1.4934615
• Publication Date: 2015-10-28T18:42:46Z
• Authors: Maxim I. Morozov; Mari-Ann Einarsrud; Julian R. Tolchard; Philipp T. Geiger; Kyle G. Webber; Dragan Damjanovic; Tor Grande
• Keywords: Ferroelasticity; Tetragonal crystal system; Hardening (computing); Ferroelectric ceramics

Despite the technological importance of hard and soft PZT, Pb(Zr,Ti)O3, ceramics, mechanisms ferroelectric hardening softening remain widely discussed in literature. The phenomena have traditionally been investigated relation with dielectric manifestations such as aging susceptibility constriction polarization-electric field hysteresis loop. Here, we present a systematic investigation ferroelastic properties PZT both tetragonal rhombohedral phases. A particular focus has devoted to domain switching by characterizing macroscopic mechanical constitutive behavior in-situ synchrotron X-ray diffraction during compression. It is demonstrated that variation ordering state point defects ceramics affects domains under or electrical fields. Softening originally was conferred quenching materials from above Curie temperature. findings are respect current understanding hardening-softening transitions materials.