Effect of Al and Mg Doping on Dielectric Properties of BaTiO3Synthesized by Solution Combustion Technique

Jongprateep, Oratai; Khongnakhon, Tunchanoke

doi:10.1080/00150193.2013.846717

Cited by 5 publications

(2 citation statements)

References 14 publications

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“…Additionally, smaller grains generally result in high density structure, which consequently results in high dielectric constant. Study from Jongprateep and Khongnakhon (2013) is in agreement with the aforementioning studies. The study reported that enhancement of dielectric properties can be achieved in samples with smaller grain sizes.…”

Section: Introductionsupporting

confidence: 91%

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Effects of Ca Addition on Chemical Composition, Microstructure and Dielectric Properties of BaTiO3

Jongprateep

Khongnakhon

Jantaratana

et al. 2014

AMM

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Owing to its high dielectric constant, barium titanate is a material commonly employed in fabrication of high energy density capacitors. Dielectric properties required for practical applications can be attained in barium titanate with desired chemical composition and microstructure. This study, therefore, aims at examining effects of additive contents on formation of secondary phases, microstructure and dielectric properties of BaTiO3 and BaTiO3 with 20-40 at% Ca. Chemical composition analysis revealed that single-phase BaTiO3 powder could be attained by the solution combustion technique. However, the powder with high Ca content exhibited large quantities of secondary phases. Dielectric property measurements of the uniaxially pressed powders indicated that dielectric constants could be enhanced with low Ca content. On the contrary, dielectric constant significantly degraded with high Ca content. This was attributed to formation of large quantities of secondary phases, coarse grain size and low density. Values of dielectric loss of all materials were lower than 1%.

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Section: Introductionsupporting

confidence: 91%

“…The study reported that enhancement of dielectric properties can be achieved in samples with smaller grain sizes. Furthermore, to achieve higher dielectric constant, the samples should attain high density [9].…”

Section: Introductionmentioning

confidence: 99%