NDLI: Diffuse phase transition behavior of dysprosium doped barium titanate ceramic

Content Provider	Springer Nature Link
Author	Badapanda, T. Senthil, V. Panigrahi, S. Anwar, Shahid
Copyright Year	2013
Abstract	The effect of dysprosium (Dy) doping on the structural and dielectric properties of barium titanate (BaTiO$_{3}$) ceramic has been studied. Dysprosium-doped barium titanate (BT) with general formula Ba$_{1-x}$Dy$_{2x/3}$TiO$_{3}$ (x = 0.0–0.1) is prepared through solid state reaction route. The XRD pattern reports the single phase tetragonal structure up to x = 0.025 with space group of P4mm and a secondary phase is observed for higher concentration of Dy. The Raman study of Ba$_{1-x}$Dy$_{2x/3}$TiO$_{3}$ (x = 0.00, 0.01, 0.025) also reveals that the ceramic is showing tetragonal symmetry and with an increase in Dy doping the tetragonal phase is moving toward more symmetric phase i.e. cubic pm3m. The surface morphology of the sintered pellets shows a compact and homogeneous grain distribution with a decrease in grain size as the Dy content increases. The temperature and frequency dependency dielectric study of the ceramic compositions (x = 0.00, 0.01, 0.025) are studied to show the effect of Dy ion on the A site of BaTiO$_{3}$ perovskite ceramic. The dielectric constant decreases with increase in Dy content. The dielectric diffusivity increases with increase in doping concentration. The P-E hysteresis loop confirms the ferroelectric behavior of the sample with decrease in remanent polarization and increase in coercive field.
Starting Page	55
Ending Page	60
Page Count	6
File Format	PDF
ISSN	13853449
Journal	Journal of Electroceramics
Volume Number	31
Issue Number	1-2
e-ISSN	15738663
Language	English
Publisher	Springer US
Publisher Date	2013-03-29
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	X-ray diffraction Rare earth Raman Analysis Diffuse Phase transition P-E loop Optical and Electronic Materials Ceramics, Glass, Composites, Natural Methods Characterization and Evaluation of Materials Electrochemistry Crystallography
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Materials Chemistry Mechanics of Materials Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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