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Piezoelectric Properties of (1-x)(0.94Bi0.5Na0.5TiO3-0.06BaTiO3)-xTa Ceramics
被引:2
|作者:
Han, Wook-Hee
[1
]
Kim, Jinhwan
[1
]
Ji, Jae-Hoon
[1
]
Lee, Bokyung
[1
]
Lee, Hyun Su
[1
]
Lee, Sang-Kwon
[2
]
Kamiko, Masao
[3
]
Ha, Jae-Geun
[4
]
Koh, Jung-Hyuk
[1
]
机构:
[1] Chung Ang Univ, Sch Elect & Elect Engn, Seoul 06974, South Korea
[2] Chung Ang Univ, Dept Phys, Seoul 06974, South Korea
[3] Univ Tokyo, Inst Ind Sci, Meguro Ku, Tokyo 1538505, Japan
[4] Kwangwoon Univ, Dept Elect Mat Engn, Seoul 01890, South Korea
关键词:
Piezoelectric Material;
Lead-Free Ceramics;
Energy Harvesters;
Electromechanical Coupling Coefficient;
ELECTRICAL-PROPERTIES;
DIELECTRIC-PROPERTIES;
TEMPERATURE;
ACTUATOR;
D O I:
10.1166/sam.2018.3426
中图分类号:
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
Lead-free 0.94Bi(0.5)Na(0.5)TiO(3)-0.06BaTiO(3) ceramics exhibit excellent piezoelectric properties. In this research, Ta dopants was introduced to 0.94Bi(0.5)Na(0.5)TiO(3)-0.06BaTiO(3) piezoelectric ceramics to improve piezoelectric properties. The sintering temperature was optimized to increase the piezoelectric properties and harvesting energy. By introducing the Ta dopants, piezoelectric constant was improved from 160 pC/N to 172 pC/N. The piezoelectric material properties of Ta doped 0.94Bi(0.5)Na(0.5)TiO(3)-0.06BaTiO(3) were analyzed for energy harvesting applications. Piezoelectric constant, electromechanical coupling coefficient, and electric field dependent polarization were measured and compared for device applications.
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页码:1737 / 1741
页数:5
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