Electrical and Mechanical Properties of 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 (BZT-BCT) Lead Free Ferroelectric Ceramics Reinforced with Nano-sized Al2O3

被引:10
作者
Adhikari, P. [1 ]
Mazumder, Ranabrata [1 ]
Sahoo, Ganesh K. [1 ]
机构
[1] Natl Inst Technol, Dept Ceram Engn, Rourkela 769008, Odisha, India
关键词
Lead free piezoelectric ceramics; BZT-BCT; sintering temperature; piezoelectric constant; flexural strength; PIEZOELECTRIC PROPERTIES; FABRICATION; NANOCOMPOSITES; BEHAVIOR; GROWTH;
D O I
10.1080/00150193.2015.1072013
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Al2O3 nano-oxides (0-2.0 vol%) added 0.5Ba(Zr0.2Ti0.8)O-3-0.5(Ba0.7Ca0.3)TiO3(BZT- 0.5BCT) ceramics have been prepared by the conventional solid-state reaction method. The effects of Al2O3 nano-oxides on the phase formation, densification, dielectric, piezoelectric and mechanical properties (flexural strength, hardness) of the BZT-0.5BCT ceramics have been studied systematically. The synthesized powder could be densified to 96% of relative density at a temperature of 1350 degrees C. It was observed that the addition of Al2O3 up to 1 vol % could maintain the permittivity (E-r) at 3600 with low tan value of about 0.02 and d(33) of 350pC/N. BZT-0.5BCT/Al2O3 ceramics possess good mechanical properties viz. flexural strength of 92 MPa compared to pure BZT-BCT (74 MPa) ceramics.
引用
收藏
页码:60 / 69
页数:10
相关论文
共 32 条
[1]   Linking large piezoelectric coefficients to highly flexible polarization of lead free BaTiO3-CaTiO3-BaZrO3 ceramics [J].
Benabdallah, F. ;
Simon, A. ;
Khemakhem, H. ;
Elissalde, C. ;
Maglione, M. .
JOURNAL OF APPLIED PHYSICS, 2011, 109 (12)
[2]   Mechanical and dielectric properties of BaTiO3/Ag composites [J].
Chen, CY ;
Tuan, WH .
JOURNAL OF MATERIALS SCIENCE LETTERS, 1999, 18 (05) :353-354
[3]   Synthesis and characterization of lead-free 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 ceramic [J].
Coondoo, Indrani ;
Panwar, Neeraj ;
Amorin, Harvey ;
Alguero, Miguel ;
Kholkin, A. L. .
JOURNAL OF APPLIED PHYSICS, 2013, 113 (21)
[4]   Lead-free (Ba0.7Ca0.3)TiO3-Ba(Zr0.2Ti0.8)O3-xwt %CuO ceramics with high piezoelectric coefficient by low-temperature sintering [J].
Cui, Yerang ;
Liu, Xinyu ;
Jiang, Minhong ;
Hu, Yaobin ;
Su, Qingshuang ;
Wang, Hua .
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2012, 23 (07) :1342-1345
[5]   Effect of Al2O3 dopant on abnormal grain growth in BaTiO3 [J].
Fisher, JG ;
Lee, BK ;
Brancquart, A ;
Choi, SY ;
Kang, SJL .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2005, 25 (12) :2033-2036
[6]   Correlation Between the Microstructure and Electrical Properties in High-Performance (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 Lead-Free Piezoelectric Ceramics [J].
Hao, Jigong ;
Bai, Wangfeng ;
Li, Wei ;
Zhai, Jiwei .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2012, 95 (06) :1998-2006
[7]   Effect of secondary-phase segregation on the positive temperature coefficient in resistance characteristics of n-BaTiO3 ceramics [J].
Hari, NS ;
Kutty, TRN .
JOURNAL OF MATERIALS SCIENCE, 1998, 33 (13) :3275-3284
[8]   In-situ fabrication of ceramic/metal nanocomposites by reduction reaction in barium titanate metal oxide systems [J].
Hwang, HJ ;
Toriyama, M ;
Sekino, T ;
Niihara, K .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 1998, 18 (14) :2193-2199
[9]   Fabrication process and electrical properties of BaTiO3/Ni nanocomposites [J].
Hyuga, H ;
Hayashi, Y ;
Sekino, T ;
Niihara, K .
NANOSTRUCTURED MATERIALS, 1997, 9 (1-8) :547-550
[10]  
Jaffe B., 1971, Piezoelectric ceramics