Dielectric properties and phase transition behaviors in (1−x)PbZrO3–xPb(Mg1/2W1/2)O3 ceramics

Abstract

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The phase evolution with temperature in 0.94PbZrO3–0.06Pb(Mg1/2W1/2)O3 antiferroelectric ceramic

“…Recently, our research work reported that the intermediate phase can also be introduced by partial replacement of Zr 4+ ions with complex B-site ions such as Ni 2+ /Nb 5+ [23,24], Zn 2+ /Nb 5+ [25], or Co 2+ /Nb 5+ [26]. Furthermore, our previous study found that by adding minor amounts (2-10 mol%) of antiferroelectric Pb(Mg 1/2 W 1/2 )O 3 (PMW) into antiferroelectric PZ, the temperature range expanded to an intermediate phase, which was characterized by evident frequency dispersion in dielectric permittivity [27]. As a consequence, a series of outstanding phase transitions were revealed by the dielectric measurement [27].…”

“…Furthermore, our previous study found that by adding minor amounts (2-10 mol%) of antiferroelectric Pb(Mg 1/2 W 1/2 )O 3 (PMW) into antiferroelectric PZ, the temperature range expanded to an intermediate phase, which was characterized by evident frequency dispersion in dielectric permittivity [27]. As a consequence, a series of outstanding phase transitions were revealed by the dielectric measurement [27]. Nevertheless, the nature of the intermediate phase is still open for debate.…”

Softening of antiferroelectricity in PbZrO3-Pb(Mn1/2W1/2)O3 complex perovskite solid solution

“…13 17 In their experiment, a ferroelectric phase was induced by the addition of Pb(Mg 1/2 W 1/2 )O 3 up to x ¼ 0.1. In addition, an antiferroelectric-ferroelectric-paraelectric phase transition sequence was observed in the composition range from x ¼ 0.02 to 0.1.…”

Characterization of PLZST-PMW dielectric ceramics

“…When a high electric field is applied to the samples, an AFE-FE phase transition can be induced. A regular hysteresis loop exhibiting ferroelectricity was clearly showed [13]. Some parameters, including the AFE-FE switching and maximum applied field (E AF and E max ), hysteresis (DE = E AF -E FA ,E AF is the field for AFE-FE phase switching, E FA is the field for FE-AFE phase switching), polarization, discharged (J d ) and charged (J c ) energy density and energy storage efficiency (J d /J c ) were calculated from the P-E hysteresis loops and listed in Table 2.…”

“…Therefore, a number of measures need to be taken to reduce the sintering temperature of PLZST ceramics. Some researchers have studied the low temperature sintering process of PbZrO 3 [13], Pb(Zr,Ti)O 3 [14][15][16][17], Pb(Mg 1/3 Nb 2/3 )O 3 [9,10,18] [13,18], WO 3 [18,20], excess PbO [10], Li 2 CO 3 [12,21], V 2 O 5 [19], Ba (Cu 0.5 W 0.5 )O 3 and BiFeO 3 [22,23] were utilized to reduce the sintering temperature, however, investigations on the behavior of low temperature sintering of PLZST ceramics were scarcely mentioned. In the PLZST ceramics, previous studies were mainly focused on their electrical properties [6,24], microstructural evolution [4] and electric-field-induced phase transition [2].…”