Ferroelectric properties of substituted barium titanate ceramics

Kumar, Parveen; Singh, Sangeeta; Juneja, J. K.; Prakash, Chandra; Raina, K. K.

doi:10.1016/j.physb.2009.02.016

Cited by 34 publications

(13 citation statements)

References 13 publications

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“…From the observed d values, lattice parameters (a & c) were computed. Lattice constants (a & c), tetragonality (c/a), X-ray density (d xrd ) computed from lattice parameters, experimental density (d ex ) measured using Archimedes principle, porosity = (d xrd -d ex ) × 100/d xrd and grain size determined from SEM micrographs, reported recently by us for these materials [11], are given in Table 1. Tetragonality (c/a) was found to decrease with increasing x.…”

Section: Structural Propertiesmentioning

confidence: 99%

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Synthesis and dielectric properties of substituted barium titanate ceramics

Kumar

Singh

Spah

et al. 2010

Journal of Alloys and Compounds

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Section: Structural Propertiesmentioning

confidence: 99%

“…In the present work, we are reporting the results of a dielectric study of Ba 0.80 Pb 0.20 Ti 1−x Zr x O 3 ceramics prepared by solid-state reaction route. Ferroelectric properties of these materials have already been published by us [11].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and dielectric properties of substituted barium titanate ceramics

Kumar

Singh

Spah

et al. 2010

Journal of Alloys and Compounds

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“…As the regulation of European directive RoHS (Restriction of Hazardous Substances, 2002/95/CE) released, lead is prohibited in electronic devices. Barium titanate, BaTiO 3 , is a lead-free oxide andelectro materials which is mostly high studied in some research because of its electrical properties, such as ferroelectric properties 2 . Ferroelectric oxides, perovskite-based, have high dielectric constant and 7th International Conference on Physics and Its Applications 2014 (ICOPIA 2014) electromechanical coupling coefficient 3 .…”

Section: Introductionmentioning

confidence: 99%

The Electrical Hysteresis Loop and Polarization Value of BaZrxTi1-xO3 Multilayer Films Material at Different Annealing Temperature (x = 0.1 and 0.08) based on Sawyer Tower Circuit

Ode

Hikam²,

Soegijono³

et al. 2014

Proceedings of the 2014 International Conference on Physics and Its Applications

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The crystallographic properties and ferroelectric state of BZT multilayer films which deposited on Si (100) substrate was studied in this work. XRD pattern peaks show that BaZr 0.1 T 0.9 O 3 and BaZr 0.08 Ti 0.92 O 3 are found wellcrystallized at 800 o C for 3 hours corresponding to vary annealed temperature. The BZT multilayerfilms are identified as tetragonal-perovskite structure. This is supported by the existence of a measured hysteresis loops which the instrument and the system is on own works.Fundamentally of theoretical in physics field, the Sawyer-Tower Circuit has been concluded to ferroelectric phenomenon analysis on sample of material with experimental result as P-E hysteresis curve.The Sawyer-Tower Circuit method was used to measure the electrical polarization with triangle wave signal at fixed frequencies 50 Hz( = 0), and maximum electrical field (E max) were injected continuously at the 40 Volt/cm. The system plotted the electrical field with respect to polarization (P-E curves), include its value. This data was used as a parameter for determining electric property of material. These results have shown the maximum value of electric field which could be used as measurement parameter. The highest maximum polarization, 34.12 µC/cm 2 , have been determined and obtained on BaZr 0.1 T 0.9 O 3 at 800 o C for 3 hours annealing process and its maximum electric field is noted to be about 38.3 Volt/cm on all samples.In the normal manner,theresultcan provide an explanation of polarization and electrical behavior of ferroelectric sample for further research.

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“…Ferroelectric properties of substituted barium titanate ceramics have been studied by Kumar et al [22]. Barium titanate/ polyvinylidene fluoride composite fibers were electrospun and their ferroelectric properties were investigated by Baji et al using piezoresponse force microscopy [23].…”

Section: Introductionmentioning

confidence: 99%

Electrical and non-linear optical studies on electrospun ZnO/BaO composite nanofibers

Vijayakumar¹,

Rathnakumari²,

Sureshkumar³

2012

Front. Mater. Sci.

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Nanocapacitors and nonvolatile ferroelectric random access memories require nanoscale thin film coatings with ferroelectric properties. One dimensional ferroelectric nanofibers are used in ferroelectric memory devices owing to the fact that decrease of the dimensionality of the memory device elements will reduce the addressing and appreciably increase the storage capacity. Novel ZnO/BaO nanocomposite fibers exhibiting ferroelectric properties have been prepared in the form of non-woven mesh by electrospinning the sol derived from the sol-gel route. Thin cylindrical nanofibers of average diameter 100 nm have been obtained and their morphology is confirmed by SEM and AFM images. In the electrospinning process, the effect of the working distance on the fiber morphology was studied and it showed that working distance between 11 and 15 cm can produce fibers without beads and the decrease in working distance in this range increases the fiber diameter. Powder XRD was used to identify the phases and EDX analysis confirmed the presence of ZnO/BaO. Dielectric and non-linear optical properties have also been studied. The dielectric studies showed that ZnO/BaO composite nanofibers undergo a phase transition from ferroelectric to paraelectric at 323 K.

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Ferroelectric properties of substituted barium titanate ceramics

Cited by 34 publications

References 13 publications

Synthesis and dielectric properties of substituted barium titanate ceramics

Synthesis and dielectric properties of substituted barium titanate ceramics

The Electrical Hysteresis Loop and Polarization Value of BaZrxTi1-xO3 Multilayer Films Material at Different Annealing Temperature (x = 0.1 and 0.08) based on Sawyer Tower Circuit

Electrical and non-linear optical studies on electrospun ZnO/BaO composite nanofibers

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