Relaxor and strain behavior in BaTi1-x(Li2/3Nb2/3)xO3 ceramics
Source abstract
Abstract
Abstract A new lead-free perovskite system of BaTi1−x(Li2/3Nb2/3)xO3 (x = 0.02, 0.05, 0.07 and 0.10) has been synthesized by the mixed-oxide route. Temperature and frequency dependences of permittivity show a crossover from ferroelectric to relaxor behavior. For the samples with x ≥ 0.05, the frequency-dependent Tm satisfying the Vogel–Fulcher formula indicates a relaxor behavior. The increase with orders of magnitude in Ea with respect to x is possibly ascribed to more Ba-vacancies. Remnant polarization and strain decrease with increasing x due to phase transformation from ferroelectric tetragonal to paraelectric pseudocubic at room temperature.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Microwave Dielectric Ceramics Synthesis · Dielectric properties of ceramics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (22)
Show source-provided references
1. Lead-free piezoceramics10.1038/nature03028 ↗
2. Large strain electrostrictive actuation in barium titanate10.1063/1.1308533 ↗
3. Structure and electrical properties of (Na0.5Bi0.5)1−xBaxTiO3 piezoelectric ceramics10.1016/j.jeurceramsoc.2007.08.007 ↗
4. Piezoelectric and electrostrictive strain behavior of Ce-doped BaTiO3 ceramics10.1063/1.1473871 ↗
5. Piezoelectric properties of zirconium-doped barium titanate single crystals grown by templated grain growth10.1063/1.370943 ↗
6. Large electrostriction near the solubility limit in BaTiO3–CaTiO3 ceramics10.1063/1.1850598 ↗
7. Piezoelectric and strain properties of Ba(Ti1−xZrx)O3 ceramics10.1063/1.1487435 ↗
8. Large piezoelectric effect in Pb-free ceramics10.1103/PhysRevLett.103.257602 ↗
9. Large piezoelectric coefficient in (Ba1−xCax)(Ti0.96Sn0.04)O3 lead-free ceramics10.1111/j.1551-2916.2011.04888.x ↗
10. Dielectric ferroelectric and piezoelectric properties of BaTi0.975(Zn1/3Nb2/3)0.025O3 ceramic10.1016/j.jallcom.2007.02.091 ↗
11. Lead-free relaxor ferroelectrics10.1111/j.1551-2916.2011.04952.x ↗
12. Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides10.1107/S0567739476001551 ↗
13. Dielectric properties and relaxor behavior of a new (1−x)BaTiO3–xBiAlO3 solid solution10.1063/1.2838479 ↗
14. Relaxor or classical ferroelectric behaviour in ceramics with composition Ba1−xNaxTi1−xNbxO310.1088/0953-8984/12/27/313 ↗
15. Evolution from ferroelectric to relaxor behavior in the (1−x)BaTiO3–xLa(Mg1/2Ti1/2)O3 system10.1080/00150190590966360 ↗
16. Relaxor-like and spectroscopic properties of niobium modified barium titanate10.1007/s100510070008 ↗
17. Freezing of the polarization fluctuations in lead magnesium niobate relaxors10.1063/1.346425 ↗
18. Spherical random-bond–random-field model of relaxor ferroelectrics10.1103/PhysRevB.60.13470 ↗
19. The relaxor enigma-charge disorder and random fields in ferroelectrics10.1007/s10853-005-5954-0 ↗
20. Weakly coupled relaxor behavior of BaTiO3–BiScO3 ceramics10.1111/j.1551-2916.2008.02798.x ↗
21. Relaxor ferroelectrics10.1080/00150198708016945 ↗
22. Ultrahigh strain and piezoelectric behavior in relaxor based ferroelectric single crystals10.1063/1.365983 ↗