Structural and Dielectric Studies of NaNbO3-A0.5Bi0.5TiO3(A-Li,Na,K) Solid Solutions

Raevskaya, S. I.; Титов, В. В.; Malitskaya, M. A.; Raevski, I. P.; Резниченко, Л. А.; Шилкина, Л. А.

doi:10.1080/00150193.2010.489853

Cited by 3 publications

(4 citation statements)

References 14 publications

(25 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Noteworthy, the phase transition between ferroelectric and paraelectric becomes more diffuse with the increase in BBKT content, indicating the disturbance of ferroelectric long‐range order and formation of polar nano‐regions due to cation disorder in A‐ and B‐sites. This similar phenomenon also existed in other NaNbO 3 ‐based systems including NaNbO 3 –Bi 0.5 Li 0.5 TiO 3 , NaNbO 3 –Na 0.5 Bi 0.5 TiO 3 , and NaNbO 3 –Bi(Zn 0.5 Ti 0.5 )O 3 …”

Section: Resultssupporting

confidence: 78%

“…This similar phenomenon also existed in other NaNbO 3 -based systems including NaNbO 3 -Bi 0.5 Li 0.5 TiO 3 , NaNbO 3 -Na 0.5 Bi 0.5 TiO 3 , and NaNbO 3 -Bi(Zn 0.5 Ti 0.5 ) O 3 . [39][40][41] As a matter of fact, most pyroelectric materials include AC-coupled detectors which work at relatively low frequency. 42 Thus, the frequency stability of pyroelectric materials is crucially important to practical application.…”

Section: Temperature and Frequency Dependence Of Dielectric Characteristicsmentioning

confidence: 99%

See 1 more Smart Citation

Significantly enhanced pyroelectric performance in novel sodium niobate‐based lead‐free ceramics by compositional tuning

et al. 2019

View full text Add to dashboard Cite

In this study, (1 − x)NaNbO3–xBa0.6(Bi0.5K0.5)0.4TiO3 (abbreviated as NN‐xBBKT, x = 0.05, 0.10, 0.15, and 0.20) lead‐free pyroelectric ceramics were synthesized by conventional solid‐state reaction method. Moreover, their microstructure, phase structure, dielectric, ferroelectric, piezoelectric, and pyroelectric characteristics were studied systematically. The X‐ray diffraction result showed that the phase structure of NN‐xBBKT ceramics changed from orthorhombic to tetragonal and finally became pseudocubic symmetry. The ferroelectric‐paraelectric phase transition temperature and depolarization temperature shifted to lower temperature with the increase in BBKT content. Furthermore, with increasing BBKT content, piezoelectric coefficient, figures of merit, and pyroelectric coefficient first increased and then decreased. The optimum pyroelectric properties (eg Fd = 0.81 × 10−5 Pa−1/2, Fv = 1.02 × 10−2 m2 C−1, Fi = 1.04 × 10−10 m V−1, and p = 3.11 × 10−8 C cm−2 K−1) were observed in sample composition with x = 0.15. More importantly, the pyroelectric coefficient of ceramic with x = 0.15 also displayed relatively high thermal stability because of high depolarization temperature (~110°C). These parameters demonstrate that the novel Pb‐free NaNbO3‐based ceramics form an important class of pyroelectric material with broad range of application prospect.

show abstract

Section: Resultssupporting

confidence: 78%

Section: Temperature and Frequency Dependence Of Dielectric Characteristicsmentioning

confidence: 99%

Significantly enhanced pyroelectric performance in novel sodium niobate‐based lead‐free ceramics by compositional tuning

et al. 2019

View full text Add to dashboard Cite

show abstract

“…However, the antiferroelectric phase is prevalent at room temperature. 12−16 To realize the stable existence of the ferroelectric phase in NN-based ceramics, researchers introduced LiTaO 3 , 17 BaTiO 3 , 12,18,19 and (K 0.5 Bi 0.5 )TiO 3 20,21 as the second component to obtain NN-based piezoelectric ceramics with a stable ferroelectric phase. Zeng et al found that the antiferroelectric phase of NN-based ceramics was transformed to ferroelectric orthorhombic (O) phase after the addition of a small amount of BT.…”

Section: Introductionmentioning

confidence: 99%

“…NaNbO 3 ceramics exhibit a ferroelectric phase with electric field and possess piezoelectric properties ( d 33 ∼ 20 pC/N). However, the antiferroelectric phase is prevalent at room temperature. − To realize the stable existence of the ferroelectric phase in NN-based ceramics, researchers introduced LiTaO 3 , BaTiO 3 , ,, and (K 0.5 Bi 0.5 )TiO 3 , as the second component to obtain NN-based piezoelectric ceramics with a stable ferroelectric phase. Zeng et al.…”

Section: Introductionmentioning

confidence: 99%

High Piezoelectricity in Eco-Friendly NaNbO₃-Based Ferroelectric Relaxor Ceramics via Phase and Domain Engineering

Cao

Lin

Shi

et al. 2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

To meet the requirements of environmental friendliness, high-performance lead-free piezoelectric materials have become important materials for next-generation electronic devices. Here, lead-free and potassium-free NaNbO3 (NN)-based ceramics with high piezoelectric (d 33 = 361 ± 10 pC/N) and dielectric (εr = 4500) properties were obtained by tolerant preparation techniques. The excellent piezoelectric and dielectric properties can be attributed to the relaxor morphotropic phase boundaries (R–MPB) and coexisting domain regions, which are beneficial in lowering the free energy and greatly improving the dielectric response and domain switching capability. Furthermore, the d 33 of NaNbO3-10Ba(Ti0.7Sn0.3)O3-1.5NaSbO3 (NN-10BTS-1.5NS) ceramics can be maintained at 350 pC/N over the range of 25–80 °C with a change rate of less than 10%, exhibiting excellent temperature stability. Based on a series of in situ characterizations, the variations of the phase and domain structures of NN-based relaxor piezoelectric ceramics with temperature are clearly demonstrated. This work not only proposes new materials for sensors and actuators but also provides an excellent strategy for designing high-performance piezoelectric ceramics through phase and domain engineering.

show abstract

Crystal Structure and electrical properties of complex perovskite solid solutions based on (1-x) NaNbO3-xBi (Zn0.5Ti0.5) O3

Prasertpalichat

Cann

2014

J Electroceram

View full text Add to dashboard Cite

Ceramics based on the perovskite solid solution (1-x) NaNbO 3 -xBi (Zn 0.5 Ti 0.5 ) O 3 were prepared using conventional solid state synthesis. The crystal structure, electrical, and optical properties were examined. According to diffraction data, a single perovskite phase could be identified up to the composition x=0.09. As the Bi (Zn 0.5 Ti 0.5 ) O 3 content increased the crystal structure transitioned from orthorhombic to pseudocubic symmetry. Furthermore, dielectric data showed that the dielectric maximum shifted to lower temperatures with the addition of Bi (Zn 0.5 Ti 0.5 ) O 3 . Polarization hysteresis data revealed a slim linear loop across the whole range of solid solutions. Optical data also showed a decrease in the optical band gap from 3.4 eV for pure NaNbO3 to 2.9 eV for the x=0.09 composition. Using impedance spectroscopy, an electrically inhomogeneous microstructure was observed for compositions with increased Bi (Zn 0.5 Ti 0.5 ) O 3 content. Finally, the substitution of Ta on the B-site was shown to shift the dielectric maximum to temperatures as low as 100 K.

show abstract

Structural and Dielectric Studies of NaNbO₃-A_0.5Bi_0.5TiO₃(A-Li,Na,K) Solid Solutions

Cited by 3 publications

References 14 publications

Significantly enhanced pyroelectric performance in novel sodium niobate‐based lead‐free ceramics by compositional tuning

Significantly enhanced pyroelectric performance in novel sodium niobate‐based lead‐free ceramics by compositional tuning

High Piezoelectricity in Eco-Friendly NaNbO₃-Based Ferroelectric Relaxor Ceramics via Phase and Domain Engineering

Crystal Structure and electrical properties of complex perovskite solid solutions based on (1-x) NaNbO3-xBi (Zn0.5Ti0.5) O3

Contact Info

Product

Resources

About

Structural and Dielectric Studies of NaNbO3-A0.5Bi0.5TiO3(A-Li,Na,K) Solid Solutions

Cited by 3 publications

References 14 publications

Significantly enhanced pyroelectric performance in novel sodium niobate‐based lead‐free ceramics by compositional tuning

Significantly enhanced pyroelectric performance in novel sodium niobate‐based lead‐free ceramics by compositional tuning

High Piezoelectricity in Eco-Friendly NaNbO3-Based Ferroelectric Relaxor Ceramics via Phase and Domain Engineering

Crystal Structure and electrical properties of complex perovskite solid solutions based on (1-x) NaNbO3-xBi (Zn0.5Ti0.5) O3

Contact Info

Product

Resources

About

Structural and Dielectric Studies of NaNbO₃-A_0.5Bi_0.5TiO₃(A-Li,Na,K) Solid Solutions

High Piezoelectricity in Eco-Friendly NaNbO₃-Based Ferroelectric Relaxor Ceramics via Phase and Domain Engineering