Structure and electrical properties of 0.80 Na{sub 0.5} Bi{sub 0.5} TiO{sub 3}-0.16 K{sub 0.5} Bi{sub 0.5} TiO{sub 3}-0.04 BaTiO{sub 3} lead-free piezoelectric ceramics

Journal Article · Mon May 23 00:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4948011· OSTI ID:22608767

Babu, G. Anandha; Giridharan, N. V. ^[1]; Muneeswaran, M.; Ramasamy, P. ^[2]

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1. SSN Research Center, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam 603 110 (India)
2. Advanced Functional Materials Laboratory, Department of Physics, National Institute of Technology, Tiruchirappalli 620015 (India)

Lead free pervoskite 0.80 Na{sub 0.5} Bi{sub 0.5} TiO{sub 3}-0.16 K{sub 0.5} Bi{sub 0.5} TiO{sub 3}-0.04 BaTiO{sub 3} (NKBBT) ceramics were fabricated via conventional solid state processing technique sintered at 1200 °C and their crystal structures and electrical properties were systematically studied. Structure of the prepared NKBBT ceramics was confirmed by Powder X-ray diffraction analysis. The dependence of dielectric constant on temperature for various frequencies (100 Hz-100 KHz) has been determined. The diffuse transition is observed in the variation of dielectric constant and it provides evidence for the relaxor characteristics. The ferroelectric response of the NKBBT ceramics with different frequency was studied. Polarisation electric field hysteresis loops revealed that the remnant polarization is 6.88 µC/cm{sup 2} and coercive electric field is 66.42 kV/cm.

• OSTI ID: 22608767
• Journal Information: AIP Conference Proceedings, Vol. 1731, Issue 1; Conference: DAE solid state physics symposium 2015, Uttar Pradesh (India), 21-25 Dec 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARIUM COMPOUNDS
BISMUTH COMPOUNDS
CERAMICS
CRYSTAL STRUCTURE
ELECTRIC FIELDS
ELECTRICAL PROPERTIES
FERROELECTRIC MATERIALS
HYSTERESIS
MICROSTRUCTURE
PERMITTIVITY
PIEZOELECTRICITY
POLARIZATION
POWDERS
SODIUM COMPOUNDS
SOLIDS
TITANATES
TITANIUM OXIDES
X-RAY DIFFRACTION