Relaxor-normal ferroelectric transition in tetragonal-rich field of Pb(Ni1/3Nb2/3)O3-PbTiO3-PbZrO3 system

Yoon, Man Soon; Jang, Hyun M.

doi:10.1063/1.359510

Cited by 77 publications

(21 citation statements)

References 21 publications

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“…The subscript NR stands for the normal ferroelectric↔relaxor ferroelectric transition. Similar transitions have been observed by other researchers in other solid solution systems [16] The x = 0.6 composition showed a broadening of the permittivity maxima and T m increased with increasing measurement frequency (Fig. 5(c)).…”

Section: Dielectric Behaviorsupporting

confidence: 83%

Dielectric properties and morphotropic phase boundaries in the xPb(Zn1/3Nb2/3)O3−(1−x)Pb(Zr0.5Ti0.5O3 pseudo-binary system

et al. 2006

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Ceramics in the xPb(Zn 1/3 Nb 2/3 )O 3 −(1 − x)Pb(Zr 0.5 Ti 0.5 )O 3 [xPZN-(1 − x)PZT] solid solution system are expected to display excellent dielectric, piezoelectric, and ferroelectric properties in compositions close to the morphotropic phase boundary (MPB). The dielectric behavior of ceramics with x = 0.1−0.6 has been characterized in order to identify the MPB compositions in this system. Combined with X-ray diffraction results, ferroelectric hysteresis measurements, and Raman reflectivity analysis, it was consistently shown that an MPB exists between x = 0.2 and x = 0.3 in this binary system. When x ≤ 0.2, the tetragonal phase dominates at ambient temperatures. In the range of x ≥ 0.3, the rhombohedral phase dominates. For this rhombohedral phase, electrical measurements reveal a profound frequency dispersion in the dielectric response when x ≥ 0.6, suggesting a transition from normal ferroelectric to relaxor ferroelectric between 0.5 ≤ x ≤ 0.6. Excellent piezoelectric properties were found in 0.3PZN-0.7PZT, the composition closest to the MPB with a rhombohedral structure. The results are summarized in a PZN-PZT binary phase diagram. N. Vittayakorn ( )

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Section: Dielectric Behaviorsupporting

confidence: 83%

Dielectric properties and morphotropic phase boundaries in the xPb(Zn1/3Nb2/3)O3−(1−x)Pb(Zr0.5Ti0.5O3 pseudo-binary system

et al. 2006

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“…In addition to this, as mentioned above, a possible substitution of Mn ion with Ti ion would lead to increase the stability of tetragonal phase, and thus, increase the internal stress. The increase in the internal stress can be effectively reduced by the formation of twin-like 90°domains having tetragonal symmetry, which increase the stability of ferroelectric state [29]. Therefore, the ferroelectric and antiferroelectric transition can be suppressed by MnO doping.…”

Section: Resultsmentioning

confidence: 97%

Effects of co-doped CaO/MnO on the piezoelectric/dielectric properties and phase transition of lead-Free (Bi0.5Na0.5)0.94Ba0.06TiO3 piezoelectric ceramics

Yoon

Lee

2008

J Electroceram

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The piezoelectric properties of (1−x)(Bi 0.5 Na 0.5 ) TiO 3 -xBaTiO 3 ceramics were reported and their piezoelectric properties reach extreme values near the MPB (about x= 0.06). The X-ray analysis of (Bi 0.5 Na 0.5 ) 0.94 Ba 0.06 TiO 3 ceramics for all compositions exhibited a pure perovskite structure without any secondary phase. Within a certain ratio of contents, the co-doped ceramics enhanced piezoelectric coefficient (d 33 ), lowered the dielectric loss, and increased the sintered density. The temperature dependence of relative dielectric permittivity (K 33 T ) reveals that the solid solutions experience two phase transitions, ferroelectric to antiferroelectric and anti-ferroelectric to relaxor ferroelectric, which can be proven by P-E hysteresis loops at different temperatures. In addition, the specimen containing 0.04/ 0.01 wt.% CaO/MnO showed that the coercive field E c was a minimum value of 26.7 kV/cm, while the remnant polarization P r was a maximum value of 38.7 μC/cm 2 , corresponding to the enhancement of piezoelectric constant d 33 of 179 pC/N, electromechanical coupling factor k p of 37.3%, and relative dielectric permittivity K 33 T of 1137. (Bi 0.5 Na 0.5 ) 0.94 Ba 0.06 TiO 3 ceramics co-doped with CaO/ MnO were considered to be a new and promising candidate for lead-free piezoelectric ceramics owing to their excellent piezoelectric/dielectric properties, which are superior to an un-doped BNBT system.

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“…Spontaneous relaxor-to-ferroelectric-phase transition is corresponding with the micro-to-macro-domain transition in Pb-based relaxor ferroelectric [25,26]. The behavior is also observed in BNT-BT system or Pb(Ni 1/3 Nb 1/3 )O 3 -PbTiO 3 -PbZrO 3 system with rhombohedral structure [27,28]. Therefore, spontaneous relaxor-to-ferroelectric-phase transition in BNT-based ceramics is correlated with the structure of sample at room temperature.…”

Section: Resultsmentioning

confidence: 94%

The structural and electric properties of Li- and K-substituted Bi0.5Na0.5TiO3 ferroelectric ceramics

Lü

Wang

Fan

et al. 2011

Journal of Alloys and Compounds

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Relaxor-normal ferroelectric transition in tetragonal-rich field of Pb(Ni1/3Nb2/3)O3-PbTiO3-PbZrO3 system

Cited by 77 publications

References 21 publications

Dielectric properties and morphotropic phase boundaries in the xPb(Zn1/3Nb2/3)O3−(1−x)Pb(Zr0.5Ti0.5O3 pseudo-binary system

Dielectric properties and morphotropic phase boundaries in the xPb(Zn1/3Nb2/3)O3−(1−x)Pb(Zr0.5Ti0.5O3 pseudo-binary system

Effects of co-doped CaO/MnO on the piezoelectric/dielectric properties and phase transition of lead-Free (Bi0.5Na0.5)0.94Ba0.06TiO3 piezoelectric ceramics

The structural and electric properties of Li- and K-substituted Bi0.5Na0.5TiO3 ferroelectric ceramics

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