Na0.5Bi2.5Nb2O9-Na0.5Bi4.5Ti4O15材料的微观结构及电性能

doi:10.11896/j.issn.1005-023X.2018.22.001

Abstract
Figure/Table
References
Related Citation (6)

Download:

Full Text ( PDF ) (3069KB)
Export: BibTeX | EndNote (RIS)

Abstract The bismuth-layer structured ferroelectric materials, (1-x)Na_0.5Bi_2.5Nb₂O₉-xNa_0.5Bi_4.5Ti₄O₁₅(NBNO-NBT-x), were fabricated by solid state sintering. It was inferred from XRD, SEM and EDS analysis that NBNO-NBT-0.5 ceramics were mainly composed of 2-4 intergrowth structured NaBi₇Ti₄Nb₂O₂₄, with Na_0.5Bi_2.5Nb₂O₉ and Na_0.5Bi_4.5Ti₄O₁₅ alternative arrangement along the c axis. The increasing asymmetry of crystal lattice led to increasing lattice stress, and the composite of NBNO and NBT further increased the ionic disorder and structural disorder, which made the ceramics exhibit different microstructure and electric properties. Compared with NBNO and NBT, NBNO-NBT-0.5 ceramics showed a larger aspect ratio, with an average grain diameter higher than 20 μm and a thickness lower than 2 μm. Meanwhile, a lower Curie temperature, a larger high temperature dielectric loss, as well as a lesser conductivity activation energy were also observed in NBNO-NBT-0.5 ceramics, and both ferroelectric and piezoelectric properties decreased.

Key words： bismuth layer-structured ferroelectrics (BLSF) intergrowth dielectric properties piezoelectric properties

Published: 21 December 2018

CLC number:

TM282

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	FAN Jiaojiao
	HE Xinhua
	FU Xiaoyi
	CHEN Danling

Cite this article:

FAN Jiaojiao,HE Xinhua,FU Xiaoyi, et al. Microstructure and Electrical Properties of Na_0.5Bi_2.5Nb₂O₉-Na_0.5Bi_4.5Ti₄O₁₅ Materials[J]. Materials Reports, 2018, 32(22): 3839-3844.

URL:

http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.22.001 OR http://www.mater-rep.com/EN/Y2018/V32/I22/3839

1 Takenaka T, Nagata H, Hiruma Y. Current developments and prospective of lead-free piezoelectric ceramics[J]. Japanese Journal of Applied Physics,2008,47(5):3787.
2 Shi W L, Xing Z G, Wang H D, et al. Research status of the lead-free piezoelectric ceramics[J]. Materials Review A: Review Papers,2014,28(2):45(in Chinese).
石伟丽,邢志国,王海斗,等.无铅压电陶瓷的研究现状[J].材料导报:综述篇,2014,28(2):45.
3 Tian X, Qu S B, Wang B, et al. Microstructure and electrical pro-perties of ultra high temperature (1-x)CaBi₂Nb₂O₉-xNa_0.5Bi_2.5-Nb₂O₉ ceramics[J]. Materials Research Innovations,2015,19(3):171.
4 Jannet D B, Maaoui M E, Mercurio J P. Ferroelectric versus relaxor behaviour in Na_0.5Bi_4.5Ti₄O₁₅-BaBi₄Ti₄O₁₅ solid solutions[J]. Journal of Electroceramics,2003,11(1-2):101.
5 Luo S, Noguchi Y J, Miyayama M, et al. Rietveld analysis and dielectric properties of Bi₂WO₆-Bi₄Ti₃O₁₂ ferroelectric system[J]. Materials Research Bulletin,2001,36(3-4):531.
6 Yi Z G, Li Y X, Yang Q B, et al. La doping effects on intergrowth Bi₂WO₆-Bi₃TiNbO₉ ferroelectrics[J]. Ceramics International,2008,34(4):735.
7 Tian X X, Qu S B, Wang B, et al. Intergrowth bismuth layer-structured Na_0.5Bi_2.5Nb₂O₉-Bi₄Ti₃O₁₂ high temperature ferroelectrics ceramics[J]. Journal of Inorganic and Organometallic Polymers and Materials,2014,24(2):355.
8 Gao X, Gu H, Li Y X, et al. Structural evolution of the intergrowth bismuth-layered Bi₇Ti₄NbO₂₁[J]. Journal of Materials Science,2011,46(16):5423.
9 Fei L J, Zhou Z Y, Hui S P, et al. Electrical properties of CaBi₄Ti₄O₁₅-Bi₄Ti₃O₁₂ piezoelectric ceramics[J]. Ceramics International,2015,41(8):9729.
10 Wang W, Shan D, Sun J B, et al. Aliovalent B-site modification on three-and four-layer Aurivillius intergrowth[J]. Journal of Applied Physics,2008,103(4):044102.
11 Voronkova V I, Yanovskii V K. The structure and ferroelectric properties of layered compounds in the system Bi₄Ti₃O₁₂-Bi₂WO₆[J]. Physica Status Solidi (a),1987,101(1):45.
12 Gao D J, Kwok K W, Lin D. Microstructure, piezoelectric and ferroelectric properties of Mn-added Na_0.5Bi_4.5Ti₄O₁₅ ceramics[J]. Current Applied Physics,2011,11(3): S124.
13 Zhao L, Xu J X, Yin N, et al. Microstructure, dielectric, and piezoelectric properties of Ce-modified Na_0.5Bi_4.5Ti₄O₁₅ high temperature piezoceramics[J]. Physica Status Solidi (RRL)-Rapid Research Letters,2008,2(3):111.
14 Jiang X P, Jiang X A, Chen C, et al. Effect of potassium sodium niobate (KNN) substitution on the structural and electrical properties of Na_0.5Bi_4.5Ti₄O₁₅ ceramics[J]. Journal of Physics D: Applied Physics,2016,49(12):125101.
15 Zhang C C, Zou J X, Li L H, et al. Dielectric and ferroelectric pro-perties of bismuth-layer high Curie point Na_0.5Bi_4.5Ti₄O₁₅ ceramics with Mg-doping[J]. Ceramics International,2017,43(16):13963.
16 Li Z, Chan H L W, Li Y X, et al. Anisotropic properties and crystal structure of ferroelectric Na_0.5Bi_4.5Ti₄O₁₅[J]. Journal of Alloys and Compounds,2010,506(1):70.
17 Jiang X P, Fu X L, Chen C, et al. High performance Aurivillius type Na_0.5Bi_4.5Ti₄O₁₅ piezoelectric ceramics with neodymium and cerium modification[J]. Journal of Advanced Ceramics,2015,4(1):54.
18 Abah R, Gai Z G, Zhan S Q, et al. The effect of B-site (W/Nb) co-substituting on the electrical properties of sodium bismuth titanate high temperature piezoceramics[J]. Journal of Alloys and Compounds,2016,664:1.
19 Wang C M, Zhao L, Liu Y, et al. The temperature-dependent pie-zoelectric and electromechanical properties of cobalt-modified sodium bismuth titanate[J]. Ceramics International,2016,42(3):4268.
20 Jiang Y L, Jiang X P, Chen C, et al. Structural and electrical properties of La³⁺-doped Na_0.5Bi_4.5Ti₄O₁₅-Bi₄Ti₃O₁₂ intergrowth high tempe-rature piezoceramics[J]. Ceramics International,2017,43(8):6446.
21 Zhou Z Y, Li Y C, Hui S P, et al. Effect of tungsten doping in bismuth-layered Na_0.5Bi_2.5Nb₂O₉ high temperature piezoceramics[J]. Applied Physics Letters,2014,104(1):012904.
22 Peng Z H, Chen Q, Wu J G, et al. Dielectric and piezoelectric pro-perties of Sb⁵⁺ doped (NaBi)_0.38(LiCe)_0.05[]_0.14Bi₂Nb₂O₉ ceramics[J]. Journal of Alloys and Compounds,2011,509(33):8483.
23 Zhou Z, Liang R, Shao X, et al. Microstructure and electrical pro-perties of 3-0 type composite of Na_0.5Bi_2.5Nb₂O₉-based bismuth-layered piezoceramics[J]. Ceramics International,2017,43(15):11710.
24 Horiuchi S, Muramatsu K, Shimazu M. Intergrowth in complex bismuth oxides, Bi₂CaNa_n-2Nb_nO_3n+3(n=5~8), revealed by 1-MV high-resolution electron microscopy[J]. Journal of Solid State Che-mistry,1980,34(1):51.
25 Uchino K, Nomura S. Critical exponents of the dielectric constants in diffused-phase-transition crystals[J]. Ferroelectrics,1982,44(1):55.
26 Kikuchi T. Stability of layered bismuth compounds in relation to the structural mismatch[J]. Materials Research Bulletin,1979,14(12):1561.
27 Yao Z R, Chu R Q, Xu Z J, et al. Thermal stability and enhanced electrical properties of Er³⁺-modified Na_0.5Bi_4.5Ti₄O₁₅ lead-free piezoelectric ceramics[J]. Royal Society of Chemistry Advances,2016,6(97):94870.
28 Wang X J, Jiang X P, Jiang H C, et al. Effects of B-site Co₂O₃ doping on microstructure and electrical properties of Na_0.25K_0.25Bi_2.5Nb₂O₉ ceramics[J]. Journal of Alloys and Compounds,2015,646(15):528.
29 Zhao Y. Study on preparation and properties of bismuth layered structure lead-free piezoelectric ceramics[D]. Xi’an: Xi’an University of Science and Technology,2008:48(in Chinese).
赵莹.铋层状结构无铅压电陶瓷的制备技术与性能研究[D].西安:西安科技大学,2008:48.
30 Ismunandar I, Kennedy B J, Gunawan, et al. Structure of ABi₂Nb₂O₉ (A=Sr, Ba): Refinement of powder Neutron diffraction data [J]. Journal of Solid State Chemistry,1996,126(1):135.
31 Palanduz A C, Smyth D M. Defect chemistry and charge transport in SrBi₂Nb₂O₉[J]. Journal of Electroceramics,2003,11(3):191.
32 Zhang F Q, Wahyudi O, Li Y X, et al. The kinetic effect on formation of disordered intergrowth structures in mixed bismuth-layered (Bi₃NbTiO₉)₂(Bi₄Ti₃O₁₂)₁ compounds[J]. Ceramic International,2015,41: S162.