The effects of sintering temperature on dielectric constant of Barium Titanate (BaTiO<sub>3</sub>)

Sandi, Dianisa Khoirum; Supriyanto, Agus; Anif,; Jamaluddin, Anif; Iriani, Yofentina

doi:10.1088/1757-899x/107/1/012069

Cited by 22 publications

(15 citation statements)

References 7 publications

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“…As the applied frequency increased, the polarized Ti ions could not respond to the changing frequency and orientation polarization was arrested. As a result, the dielectric constant and the capacitance were reduced [7,25]. e highest dielectric constant (∼78) and lowest dielectric loss (∼0.02) at a frequency of 200 kHz occurred in calcium titanate, sintered at 1350°C with a holding time of 180 min.…”

Section: Resultsmentioning

confidence: 99%

Calcium Titanate from Food Waste: Combustion Synthesis, Sintering, Characterization, and Properties

Cherdchom

Rattanaphan

Chanadee

2019

Advances in Materials Science and Engineering

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Calcium titanate (CaTiO 3 ) was combustion synthesized from a calcium source of waste duck eggshell, anatase titanium dioxide (A-TiO 2 ), and magnesium (Mg). e eggshell and A-TiO 2 were milled for 30 min in either a high-energy planetary mill or a conventional ball mill. ese powders were then separately mixed with Mg in a ball mill. After synthesis, the combustion products were leached and then sintered to produce CaTiO 3 ceramic. Analytical characterization of the as-leached combustion products revealed that the product of the combustion synthesis of duck eggshell + A-TiO 2 that had been high-energy-milled for 30 min before synthesis comprised a single perovskite phase of CaTiO 3 . e high-energy milling of the reactant powder had generated a large reactive surface area and induced structural defects, both of which drove the completion of the combustion reaction and the phase conversion of the reactants into the product. A calcium titanate ceramic, fabricated by sintering as-leached powdered combustion product at 1350°C for 180 min, achieved a maximum density of 3.65 g/cm 3 and a minimum porosity of 0.54%. e same fabricated calcium titanate ceramic product also exhibited the highest dielectric constant (∼78) and the lowest dielectric loss (∼0.02), which resulted from the simplified charge polarization process.

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Section: Resultsmentioning

confidence: 99%

Calcium Titanate from Food Waste: Combustion Synthesis, Sintering, Characterization, and Properties

Cherdchom

Rattanaphan

Chanadee

2019

Advances in Materials Science and Engineering

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“…At these higher volume loadings, the trend underpredicts the value. The shift in the trend above 40% volume loads can be directly correlated to the shape factor term associated with (8). This provides justification for maintaining the volume loading below 30%.…”

Section: Dielectric Measurement Of Powdery Al 2 Omentioning

confidence: 94%

“…A survey of the current literature reveals several material preparation methods used in the measurement of powdery material in a coaxial transmission line [5][6][7][8]. These methods include sintering pellets of powdery materials, die pressing powders into pellets, and casting powders into paraffin.…”

Section: Introductionmentioning

confidence: 99%

“…On account of a change in the local environment of the particles, the dielectric properties of sintered particles differ from their pre-sintered form. Sandi et al [8] demonstrated that for barium titanate (BaTiO 3 ) that the dielectric properties increase with increasing sintering temperature. While sintering can form samples with good mechanical properties, often the microstructure and subsequently the dielectric properties are influenced [10,11].…”

Section: Introductionmentioning

confidence: 99%

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Dielectric measurement of powdery materials using a coaxial transmission line

Tempke

Wildfire

Shekhawat

et al. 2020

IET Science, Measurement &Amp; Technology

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The following study investigates the use of a coaxial transmission line for determining the properties of powdery dielectric materials (1-10 GHz). Four powdery materials with dielectric constants ranging from 3.5 to 70 (SiO 2 , Al 2 O 3 , CeO 2 , and TiO 2 ) were experimentally investigated at varying volume loading fractions. Powder particles were mixed with a paraffin matrix and properties of the powder were analysed using ten mixing equations to verify their accuracy. These powder-paraffin composites were also modelled at varying volume loadings for comparison with experimental data to gain a better understanding of the interactions between the different phases. The optimal volume loading fraction was determined to be 10% for all powders tested. A metric for selecting the most well-suited mixing equation was proposed that involved taking the ratio of the particle dielectric to that of the matrix. This study ultimately provides guidance for experimentally measuring the dielectric properties of unknown powdery materials that have applications for new devices that utilised powder-based dielectric materials.

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“…Because of a change in the local environment of the particles, the dielectric properties of sintered particles differ from their pre-sintered form. Sandi et al demonstrated that for barium titanate (BaTiO3) that the dielectric properties increase with increasing sintering temperature [10]. While sintering can form samples with good mechanical properties, often the microstructure and subsequently the dielectric properties are influenced.…”

Section: Introductionmentioning

confidence: 99%

Experimental Measurement of Dielectric Properties of Powdery Materials using a Coaxial Transmission Line

Tempke¹

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The following study investigates the use of a coaxial transmission line for determining the properties of powdery dielectric materials (1-10GHz). Four powdery materials with dielectric constants ranging from 3.5 to 70 (SiO2, Al2O3, CeO2, and TiO2) were experimentally investigated at varying volume loading fractions. Powder particles were mixed with a paraffin matrix and properties of the powder were analyzed using ten mixing equations to verify their accuracy. The optimal volume loading fraction was determined to be 10% for all powders tested. A metric for selecting the most wellsuited mixing equation was proposed that involved taking the ratio of the particle dielectric to that of the matrix. This study ultimately provides guidance for experimentally measuring the dielectric properties of unknown powdery materials that have application for new devices that utilized powder-based dielectric materials.

show abstract

The effects of sintering temperature on dielectric constant of Barium Titanate (BaTiO₃)

Cited by 22 publications

References 7 publications

Calcium Titanate from Food Waste: Combustion Synthesis, Sintering, Characterization, and Properties

Calcium Titanate from Food Waste: Combustion Synthesis, Sintering, Characterization, and Properties

Dielectric measurement of powdery materials using a coaxial transmission line

Experimental Measurement of Dielectric Properties of Powdery Materials using a Coaxial Transmission Line

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The effects of sintering temperature on dielectric constant of Barium Titanate (BaTiO3)

Cited by 22 publications

References 7 publications

Calcium Titanate from Food Waste: Combustion Synthesis, Sintering, Characterization, and Properties

Calcium Titanate from Food Waste: Combustion Synthesis, Sintering, Characterization, and Properties

Dielectric measurement of powdery materials using a coaxial transmission line

Experimental Measurement of Dielectric Properties of Powdery Materials using a Coaxial Transmission Line

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Product

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The effects of sintering temperature on dielectric constant of Barium Titanate (BaTiO₃)