Enhanced ferroelectricity of CaBi2Nb2O9-based high-temperature piezoceramics by pseudo-tetragonal distortion
Source abstract
Abstract
Abstract (LiBi)-doped CaBi2Nb2O9 (CBN) ceramics were synthesized by the conventional solid-state sintering method. The effects of (LiBi) additives on the crystalline structure were explored by Rietveld refinements. The results showed that pseudo-tetragonal distortion was induced by (LiBi) additives when x ≥ 0.35. This structural distortion increased the spontaneous polarization along a-axis and decreased the quits spontaneous polarization along b-axis, which was beneficial to the polarization switching, thus promoting the ferroelectricity and decreasing the coercive field (EC) of CBN based ceramics. The Ca0.60(Li0.5Bi0.5)0.40Bi2Nb2O9 (CBNLB-40) ceramics possess the optimum ferroelectric property with 2Pr of 10 μC/cm2 and a coercive field (EC) lower than 100 kV/cm. Moreover, it exhibits a good ferroelectric fatigue-free property within 107 switched cycles. This work may provide a new method to promote the performance of Aurivillius ferroelectric-based non-volatile memory devices.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Acoustic Wave Resonator Technologies · Microwave Dielectric Ceramics Synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (34)
Show source-provided references
1. Lanthanum-substituted bismuth titanate for use in non-volatile memories10.1038/44352 ↗
2. Fatigue-free ferroelectric capacitors with platinum electrodes10.1038/374627a0 ↗
3. Chemical vapor deposition of electroceramic thin films10.1557/S0883769400046066 ↗
4. Electrical properties' maxima in thin films of the lead zirconate–lead titanate solid solution system10.1063/1.115263 ↗
5. Crystal structures and ferroelectric properties of SrBi2Ta2O9 and Sr0.8Bi2.2Ta2O910.1063/1.123708 ↗
6. Differences in nature of defects between SrBi2Ta2O9 and Bi4Ti3O1210.1063/1.123709 ↗
7. Electrode contacts on ferroelectric Pb(ZrxTi1-x)O3 and SrBi2Ta2O9 thin films and their influence on fatigue properties10.1063/1.359737 ↗
8. Preparation and ferroelectric properties of SrBi2Ta2O9 thin films10.1063/1.113140 ↗
9. A lead‐free high‐curie‐point ferroelectric ceramic, CaBi2Nb2O9
10. Structural basis of ferroelectricity in the bismuth titanate family10.1016/0025-5408(71)90082-1 ↗
11. A family of ferroelectric bismuth compounds10.1016/0022-3697(62)90526-7 ↗
12. Crystal chemistry of mixed bismuth oxides with layer-type structure10.1111/j.1151-2916.1962.tb11113.x ↗
13. Fabrication and piezoelectric property of highly textured CaBi2Nb2O9 ceramics by tape casting
14. Grain oriented growth and properties of ultra-high temperature CaBi 2 Nb 2 O 9 piezoelectric ceramics10.1007/s11426-011-4342-7 ↗
15. Electromechanical properties of calcium bismuth niobate (CaBi2Nb2O9) ceramics at elevated temperature10.1016/j.matchemphys.2009.06.022 ↗
16. Enhancement of piezoelectric properties of (LiCePr)-multidoped CaBi2Nb2O9 high temperature ceramics10.1016/j.matlet.2013.05.108 ↗
17. Piezoelectric and electromechanical properties of ultrahigh temperature CaBi2Nb2O9 ceramics10.1002/pssr.200802259 ↗
18. Microstructure and electrical properties of Aurivillius phase (CaBi2Nb2O9)1-x(BaBi2Nb2O9)x solid solution10.1063/1.3457229 ↗
19. High temperature Aurivillius piezoelectrics: the effect of (Li, Ln) modification on the structure and properties of (Li, Ln)0.06(Na, Bi)0.44Bi2Nb2O9 (Ln = Ce, Nd, La and Y)10.1039/c2dt32564k ↗
20. Crystal structure and thermal annealing behaviors of high d33 Aurivillius-phase ceramics Li0.04Ce0.04Na(0.46−x/2)Bi(4.46+x/2)Ti(4−x)ScxO15 with the Sc3+/Bi3+ co-substitution
21. Effect of isovalent lanthanide cations compensation for volatilized A-site bismuth in Aurivillius ferroelectric bismuth titanate
22. Enhanced electromechanical properties and conduction behaviors of Aurivillius Bi4Ti2.95(B1/3Nb2/3)0.05O12 (B˭Mg, Zn, Cu) ceramics10.1016/j.matlet.2016.03.130 ↗
23. Crystal structure and ferroelectric properties of ABi2Ta2O9 ( A = Ca, Sr, and Ba)10.1103/PhysRevB.61.6559 ↗
24. Relation between tolerance factor and TC in Aurivillius compounds10.1557/JMR.2001.0433 ↗
25. Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides
26. Structure refinements and the influences of A-site vacancies on properties of Na0.5Bi2.5Nb2O9-based high temperature piezoceramics10.1063/1.4967991 ↗
27. A candidate for lead-free ultrahigh-temperature piezoelectrics: the excellent electro-mechanical properties of Aurivillius oxides, Ca1-5xLi2xNd2x□xBi2Nb2-2xScxWxO9-1.5x10.1039/c3ce41594e ↗
28. Anonymous, Draft 16 of a working document for a proposed standard to be entitled: IEEE standard definitions of terms associated with ferroelectric and related materials, IEEE Transactions on Ultrasonics Ferroelectrics & Frequency Control, 50(12), 2003, pp. 1613–1646.10.1109/TUFFC.2003.1256301 ↗
29. Ferroelectrics go bananas10.1088/0953-8984/20/02/021001 ↗
30. Semiconductor/relaxor 0-3 type composites without thermal depolarization in Bi0.5Na0.5TiO3-based lead-free piezoceramics10.1038/ncomms7615 ↗
31. Electrical properties and thermal stability of Ce-modified Ca0.80(Li0.5Bi0.5)0.20Bi2Nb2O9 ceramics10.1016/j.jallcom.2016.11.403 ↗
32. Crystal structure of Bi4Ti3O12
33. The crystal chemistry and dielectric properties of the Aurivillius family of complex bismuth oxides with perovskite-like layered structures
34. Cyclic cluster growth in ferroelectric perovskites10.1103/PhysRevLett.89.187601 ↗