Enhancement of piezoelectric properties of Pb(Mg1/3Nb2/3)0.65Ti0.35O3 ceramics by ZnO modification

Effects of frequency on electrical fatigue behavior of ZnO-modified Pb(Mg1/3Nb2/3)0.65Ti0.35O3 ceramics

“…Moreover, Grossmann et al proposed that frequency had an effect on fatigue loss only in the case of incomplete domain switching [19]. It was found in our previous work that 0.4mol%ZnO-modified PMNT ceramics with density of 7.7 g/cm 3 (a relative density of 96%) and grain size of 3 µm showed improved ferroelectric and piezoelectric properties [20]. Therefore, 0.4mol%ZnO-modified PMNT ceramic was studied in this work.…”

Domain structure and evolution in ZnO‐modified Pb(Mg1/3Nb2/3)O3–0.32PbTiO3 ceramics

“…The best piezoelectric property appears at the R phase boundary of the MPB region in PMN–PT system . To further enhance the thermal stability of the structure and the piezoelectric property of PMN–PT ceramics with MPB composition, other dopants are often introduced to form the ternary or even quaternary systems . For example, the modification of electrical properties and microstructure in the PMN–PT ceramics by oxides additives, such as SiO 2 , MnO 2 , CuO, and ZnO, are intensively investigated .…”

“…To further enhance the thermal stability of the structure and the piezoelectric property of PMN–PT ceramics with MPB composition, other dopants are often introduced to form the ternary or even quaternary systems . For example, the modification of electrical properties and microstructure in the PMN–PT ceramics by oxides additives, such as SiO 2 , MnO 2 , CuO, and ZnO, are intensively investigated . Among them, the addition of ZnO can effectively modify the phase/domain structure of PMN–PT ceramics, and thus improve their piezoelectric property, T c , and thermal stability …”

“…For example, the modification of electrical properties and microstructure in the PMN–PT ceramics by oxides additives, such as SiO 2 , MnO 2 , CuO, and ZnO, are intensively investigated . Among them, the addition of ZnO can effectively modify the phase/domain structure of PMN–PT ceramics, and thus improve their piezoelectric property, T c , and thermal stability …”

“…When ZnO is introduced, there are mainly three possible ways to modify the phase/domain structure and enhance the electrical properties of PMN–PT ceramic . (a) As it is reported, ZnO is often used as sintering aid, which can improve the density and grain size of the matrix ferroelectric materials, and thereby modify their domain structure and improve their electrical properties.…”