Phase transitions, relaxor behavior, and electrical properties in (1−x)(Bi0.5Na0.5)TiO3–x(K0.5Na0.5)NbO3lead-free piezoceramics

Hao, Jigong; Bai, Wangfeng; Li, Wei; Shen, Bo; Zhai, Jiwei

doi:10.1557/jmr.2012.328

Cited by 37 publications

(9 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…31 In addition, high-temperature diffraction measurements reported for related lead-free BNT-based materials comply with the currently observed temperature invariance of the structure. [32][33][34] In contrast to the XRD patterns, the Young's modulus changes significantly with temperature. In many ceramics, such as alumina 35 or magnesia, 36 the Young's modulus decreases linearly with temperature as long as structural phase transformations are absent.…”

Section: Discussionmentioning

confidence: 93%

Local structure change evidenced by temperature-dependent elastic measurements: Case study on Bi1/2Na1/2TiO3-based lead-free relaxor piezoceramics

Dittmer

Webber

et al. 2014

Journal of Applied Physics

View full text Add to dashboard Cite

Quenching-induced circumvention of integrated aging effect of relaxor lead lanthanum zirconate titanate and (Bi1/2Na1/2)TiO3-BaTiO3 Appl. Phys. Lett. 102, 032901 (2013) (4BZT) is measured with the impulse excitation technique and contrasted with corresponding dielectric and structural data. While the dielectric properties suggest a phase transition, the high resolution XRD patterns remain virtually unchanged from room temperature up to high temperatures, confirming no change in their long-range order. In contrast, the elastic properties indicate a broad and diffuse ferroelastic transition denoted by a minimum in Y(T). By analogy to the elastic and dielectric data of PbZr x Ti 1Àx O 3 and PLZT, it is concluded that 20BKT and 4BZT are relaxors with polar nanoregions embedded in a metrically cubic matrix. Interestingly, no indication for the freezing temperature was reflected in any of the employed measurement techniques. From the saturation of Y(T), it is suggested that the Burns temperature may be approximated as 700 C. Moreover, it is found that the modification with the ternary end-member BiZn 1/2 Ti 1/2 O 3 results in an increase in Young's modulus. A comparison with the Bi 1/2 Na 1/2 TiO 3 -BaTiO 3 -K 0.5 Na 0.5 NbO 3 yields the same results. V C 2014 AIP Publishing LLC.

show abstract

Section: Discussionmentioning

confidence: 93%

Local structure change evidenced by temperature-dependent elastic measurements: Case study on Bi1/2Na1/2TiO3-based lead-free relaxor piezoceramics

Dittmer

Webber

et al. 2014

Journal of Applied Physics

View full text Add to dashboard Cite

show abstract

“…The (Bi 1/2 Na 1/2 )TiO 3 –BaTiO 3 –(K 0.5 Na 0.5 )NbO 3 ceramics, which showed a double polarization and electric field ( P – E ) hysteresis loop and a sprout‐shaped strain and electric field ( S – E ) curve, exhibited a large strain owing to the negligible remnant strain The presence of a double P – E hysteresis loop and a sprout‐shaped S – E curve was explained by the phase transition between an ergodic relaxor state and a ferroelectric with the application of the electric field . However, these ceramics also showed a decreased strain at high temperature …”

Section: Introductionmentioning

confidence: 99%

Large Strain in CuO‐added (Na_0.2K_0.8)NbO₃ Ceramic for Use in Piezoelectric Multilayer Actuators

et al. 2015

View full text Add to dashboard Cite

In this study, 1.0 mol% CuO-added (Na x K 1 -x )NbO 3 (CN x K 1 -xN) ceramics with 0.0 ≤ x ≤ 0.5 were sintered at a relatively low temperature of 960°C. A large Q m value (≥1750) was obtained for the specimens with x ≤ 0.2 owing to the hardening effect of Cu 2+ ions, indicating that a large number of Cu 2+ ions had replaced Nb 5+ ions in these ceramics. The double polarization versus electric field (P-E) hysteresis loop was observed for the specimens with x ≤ 0.2, and was explained by the defect polarization (P d ) formed between Cu 2+ ions and O 2 -vacancies. These specimens also exhibited a sprout-shaped strain versus electric field (S-E) curves with a large strain of 0.14%-0.15% at 8.0 kV/mm because of the internal bias field produced by P d . For the CN 0.2 K 0.8 N ceramic, a double P-E hysteresis loop was maintained at 125°C without remnant polarization. Moreover, this ceramic showed a large strain of 0.175% after 10 4 cycles when a high electric field of 8.0 kV/mm was continuously applied to the specimens during each cycles. Therefore, CN 0.2 K 0.8 N is a useful lead-free piezoelectric ceramic for multilayer actuators.

show abstract

“…1(a) presents the XRD patterns of the BNT-0.08BCST-xEr ceramics, showing a single perovskite structure without apparent trace of secondary phases. All the peaks could be indexed based on a peudocubic perovskite structure as evident by the undetected splitting of any of the peaks [16]. Moreover, the diffraction peaks of BNT-0.08BCST-xEr samples shift toward lower diffraction 2θ angles with the increase of Er content, as illustrated in the inset figure (the left one).…”

Section: Methodsmentioning

confidence: 90%

Large electrostrictive effect and bright upconversion luminescence in Er-modified 0.92(Bi0.5Na0.5)TiO3–0.08(Ba0.90Ca0.10)(Ti0.92Sn0.08)O3 lead-free ceramics

Zhang

Diao

et al. 2015

Physica B: Condensed Matter

Self Cite

View full text Add to dashboard Cite

Phase transitions, relaxor behavior, and electrical properties in (1−x)(Bi_0.5Na_0.5)TiO₃–x(K_0.5Na_0.5)NbO₃lead-free piezoceramics

Abstract: Abstract

Cited by 37 publications

References 46 publications

Local structure change evidenced by temperature-dependent elastic measurements: Case study on Bi1/2Na1/2TiO3-based lead-free relaxor piezoceramics

Local structure change evidenced by temperature-dependent elastic measurements: Case study on Bi1/2Na1/2TiO3-based lead-free relaxor piezoceramics

Large Strain in CuO‐added (Na_0.2K_0.8)NbO₃ Ceramic for Use in Piezoelectric Multilayer Actuators

Large electrostrictive effect and bright upconversion luminescence in Er-modified 0.92(Bi0.5Na0.5)TiO3–0.08(Ba0.90Ca0.10)(Ti0.92Sn0.08)O3 lead-free ceramics

Contact Info

Product

Resources

About

Phase transitions, relaxor behavior, and electrical properties in (1−x)(Bi0.5Na0.5)TiO3–x(K0.5Na0.5)NbO3lead-free piezoceramics

Abstract: Abstract

Cited by 37 publications

References 46 publications

Local structure change evidenced by temperature-dependent elastic measurements: Case study on Bi1/2Na1/2TiO3-based lead-free relaxor piezoceramics

Local structure change evidenced by temperature-dependent elastic measurements: Case study on Bi1/2Na1/2TiO3-based lead-free relaxor piezoceramics

Large Strain in CuO‐added (Na0.2K0.8)NbO3 Ceramic for Use in Piezoelectric Multilayer Actuators

Large electrostrictive effect and bright upconversion luminescence in Er-modified 0.92(Bi0.5Na0.5)TiO3–0.08(Ba0.90Ca0.10)(Ti0.92Sn0.08)O3 lead-free ceramics

Contact Info

Product

Resources

About

Phase transitions, relaxor behavior, and electrical properties in (1−x)(Bi_0.5Na_0.5)TiO₃–x(K_0.5Na_0.5)NbO₃lead-free piezoceramics

Large Strain in CuO‐added (Na_0.2K_0.8)NbO₃ Ceramic for Use in Piezoelectric Multilayer Actuators