X-ray diffraction and dielectric studies across morphotropic phase boundary in (1−x) [Pb(Mg0.5W0.5)O3]–xPbTiO3 ceramics

Structural, microstructural and thermal properties of lead-free bismuth–sodium–barium–titanate piezoceramics synthesized by mechanical alloying

“…However, the existence of a considerable amount of the amorphous phase was also confirmed at this time. 5) During the milling cycle, polymorphic transformations of TiO 2 occurred which act as the main impediment of the alloying process. 6) During the heating cycle, some of these transformations (not all of them), such as the stress relaxation, anatase-to-rutile phase transition, CO 2 extraction and pyrochlore formation, crystallization of the amorphous phase, and pyrochlore-to-perovskite phase transformation can occur in the as-milled powders depend on the milling time, confirming the structural analysis done by XRD.…”

“…Lead-based piezoceramics such as lead titanate (PT) and lead zirconate titanate (PZT) are widely used in commercial applications due to their significantly high piezoelectric properties [1][2][3]. Considering the toxicity of lead-based ceramics, negative human health impacts and possibility for environmental pollutants that can be caused over their lifecycle, it is clear a substitute is needed [4,5].…”

Structural and Piezoelectric Properties of (1−x)Pb(Zr1−yTiy)O3–xPb(Zn0.4Ni0.6)1/3Nb2/3O3 Ceramics Near Triple Point

“…Moreover, a composition suitable for multilayer actuators and piezoelectric energy harvesters is also suggested. However, the investigation on the natures of the phases near MPB and triple points of ferroelectric perovskite is generally deep and specialized, using neutron and synchrotron diffraction experiments analyzed by Rietveld refining or pair distribution function analysis . Therefore, this work is considered to be a first approximation of the determination of the phase diagram of (1− x )Pb(Zr 1− y Ti y )O 3 ‐ x Pb(Zn 0.4 Ni 0.6 ) 1/3 Nb 2/3 O 3 ceramics near the triple point.…”

Electrophysical Properties of the Three-Component Multiferroic Ceramic Composites

“…The phase transition temperature from the ferroelectric to the paraelectric phase increases with the increase in the amount of titanium in the PZT composition. Exciting functional properties of PZT-type ceramic materials (with extremely high or extremely low parameters) occur in the morphotropic area, i.e., in the area of a mixed tetragonal and rhombohedral phase [ 31 , 33 , 34 ].…”