Electrical properties and microstructure of phase combination in BaTiO3-based Ceramics

Perovskite barium titanate (BaTiO3) ceramics are widely used in electronics industries such as capacitors, sensors and actuators. BaTiO3-based ceramics have good dielectric, ferroelectric and piezoelectric properties. BaTiO3 powder was fabricated by mixed-oxide method via a vibro-milling technique....

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Bibliographic Details
Published in:Journal of physics. Conference series 2018-12, Vol.1144 (1)
Main Authors: Funsueb, N, Limpichaipanit, A, Ngamjarurojana, A
Format: Article
Language:English
Subjects:
Actuators
Aluminum oxide
Barium titanates
Ceramic powders
Ceramics industry
Circuits
Electric fields
Electrical properties
Ferroelectricity
Grain size
Induced polarization
Microstructure
Perovskites
Piezoelectricity
Sintering (powder metallurgy)
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Summary:Perovskite barium titanate (BaTiO3) ceramics are widely used in electronics industries such as capacitors, sensors and actuators. BaTiO3-based ceramics have good dielectric, ferroelectric and piezoelectric properties. BaTiO3 powder was fabricated by mixed-oxide method via a vibro-milling technique. The pellets were then placed in a high purity alumina crucible in air and sintered at 1375 °C for 1, 2, 4, 6 and 8h. X-ray diffraction technique was used to investigate phase formation of BaTiO3 ceramics. Grain size was measured by scanning electron microscopy (SEM). The computer-controlled dielectric measurement system consisted of a high precision LCR-meter. Electric field induced polarization was measured by Sawyer-Tower circuit. In this work, the effect of phase combination in BaTiO3 ceramics on electrical properties (dielectric and electric field induced polarization) and microstructure was investigated.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1144/1/012133