| RESEARCH PAPER |
|
|
|
|
|
| Structure and Electrical Properties of Piezoelectric Ceramics Ba0.9Ca0.1Ti1-xSnxO3 Sintered with CeO2 Doping |
| YIN Qiyi, TIAN Chang an, HU Shuting, WANG Chengze, WANG Tingting,YANG Jie, JI Dongdong, LIU Yang
|
| Department of Chemistry and Materials Engineering, Hefei University, Hefei 230601 |
|
|
|
|
Abstract New lead-free piezoelectric ceramics Ba0.9Ca0.1Ti1-xSnxO3 with 0.15%(mole fraction) CeO2doping were prepared via the conventional sintering technique at 1 120 ℃ for 2 h, and the products’ microstructure and electrical properties were investigated. X-ray diffraction indicates that all the ceramics possess a pure perovskite structure with typical tetragonal symmetry, SEM micrographs suggest that the appropriate addition amount of Sn can enhance the compactness. The Sn-modified BaTiO3-based ceramics exhibit an optimum piezoelectric, dielectric and ferroelectric properties (d33=276 pC/N, kp=46%, εr=3 678, tanδ=2.4%, Pr=18.2 μC/cm2, EC=1.12 kV/mm) at room temperature while x=0.02. These excellent results demonstrate that appropriate amount of Sn can further improve the electrical properties of BaTiO3-based piezoelectric ceramics.
|
|
Published: 08 May 2018
|
|
|
|
|
1 Saito Y, Takao H, Tani T, et al. Lead-free piezoceramics[J]. Nature, 2004,432:84.
2 Lin W, Fan L L, Lin D M, et al. Phase transition, ferroelectric and piezoelectric properties of Ba1-xCaxTi1-yZryO3 lead-free ceramics[J]. Curr Appl Phys, 2013,13:159.
3 Shi J, Yang W. Piezoelectric and dielectric properties of CeO2-doped (Bi0.5Na0.5)0.94Ba0.06TiO3 lead-free ceramics[J]. J Alloys Compd, 2009,472:267.
4 Yin Q, Sun Z, Shi S, et al. Structure and electrical properties of K0.5Na0.5NbO3-SrTiO3 lead-free piezoelectric ceramics with LiSbO3 doping[J]. J Mater Sci: Mater El, 2013,24:4258.
5 Liu W F, Ren X B. Large piezoelectric effect in Pb-free ceramics[J]. Phys Rev Lett, 2009,103:257602.
6 Ye S, Fuh J, Lu L. Effects of Ca substitution on structure, piezoelectric properties, and relaxor behavior of lead-free Ba(Ti0.9Zr0.1)O3 piezoelectric ceramics[J]. J Alloys Compd, 2012,541:396.
7 Chu B J, Chen D R, Li G R, et al. Electrical properties of Na1/2Bi1/2-TiO3-BaTiO3 ceramics[J]. J Eur Ceram Soc,2002,22:2115.
8 Li H, Feng C, Ya W. Some effects of different additives on dielectric and piezoelectric properties of (Bi1/2Na1/2)TiO3-BaTiO3 morphotropic-phase-boundary composition[J]. Mater Lett, 2004,58:1194.
9 Malyshkina O V, Movchikova A A, Penzov K N, et al. Investigation of thermal and dielectric properties of tin-doped piezoelectric ceramics based on barium titanate[J]. Phys Solid State, 2010,52:121.
10 Hippel A, Breckenridge R G, Chesley F G, et al. High dielectric constant ceramics[J]. Ind Eng Chem, 1946,38:1097.
11 Wul B M, Goldman l M. Dilelectrie constants of titanates of metal of the second group[J]. Compt Rend Acad Sci URSS, 1945,49:139.
12 Mason W P. Eleetrostrictive effect in baritlm titanate ceramics[J]. Phys Rev, 1948,74:1134.
13 Jaffe B, Cook W R, Jaffe H. Piezoelectric ceramics[M]. London: Academic, 1971.
14 Li W, Xu Z J, Chu R Q, et al. High piezoelectric d33 coefficient in (Ba1-xCax)(Ti0.98Zr0.02)O3 lead-free ceramics with relative high Curie temperature[J]. Mater Lett, 2010,64:2325.
15 Zhang S, Zhang H, Zhang B, et al. Phase-transition behavior and piezoelectric properties of lead-free (Ba0.95Ca0.05)(Ti1-xZrx)O3 ceramics[J]. J Alloys Compd, 2010,506:131.
16 Cui Y, Liu X, Jiang M, et al. Lead-free (Ba0.85Ca0.15)(Ti0.9Zr0.1)-O3-CeO2 ceramics with high piezoelectric coefficient obtained by low-temperature sintering[J]. Ceram Int, 2012,38:4761.
17 Maiti T, Guo R, Bhalla A S. Electric field dependent dielectric properties and high tunability of BaZrxTi1-xO3 relaxor ferroelectrics[J]. Appl Phys Lett, 2006,89:122909.
18 Halder S, Gerber P, Schneller T, et al. Electromechanical properties of Ba(Ti1-xZrx)O3 thin films[J]. Appl Phys A, 2005,81:11.
19 Li W, Xu Z, Chu R, et al. Piezoelectric and dielectric properties of (Ba1-xCax)-(Ti0.95Zr0.05)O3 lead-free ceramics[J]. J Am Ceram Soc, 2010,93:2942.
20 Zhang P Z, Shen M R, Fang L, et al. Pr3+ photoluminescence in ferroelectric (Ba0.77Ca0.23)TiO3 ceramics: Sensitive to polarization and phase transitions[J]. Appl Phys Lett, 2008,92:222908.
21 Wu B, Xiao D, Wu W, et al. Microstructure and electrical properties of (Ba0.98Ca0.02)(Ti0.94Sn0.06)O3 modified Bi0.51Na0.50TiO3 lead-free ceramics[J]. Ceram Int, 2012,38:5677.
22 Li W, Xu Z, Chu R, et al. Large piezoelectric coefficient in(Ba1-xCax)(Ti0.96Sn0.04)O3 lead-free ceramics[J]. J Am Ceram Soc, 2011,94:4131.
23 Xue D Z, Zhou Y M, Bao H X, et al. Large piezoelectric effect in Pb-free Ba(Ti,Sn)O3-x(Ba,Ca)TiO3 ceramics[J]. Appl Phys Lett, 2011,99:122901.24 WangXL,LiBO.Dielectricaudio-frequencydispersioninBa(Ti1-xSnx)O3ferroelectrics[J].SolidStateCommun,2009,149:537.
25 Wang P, Li Y, Lu Y. Enhanced piezoelectric properties of (Ba0.85-Ca0.15)(Ti0.9Zr0.1)O3 lead-free ceramics by optimizing calcinations and sintering temperature[J]. J Eur Ceram Soc, 2011,31:2005.
26 Wang X S, Yamada H, Xu C N. Large electrostriction near the solubility limit in BaTiO3-CaTiO3 ceramics[J]. Appl Phys Lett, 2005,86:122905. |
|
|
|
渝公网安备50019002502923号 © Editorial Office of Materials Reports.
2017, Vol. 31 
