Effects of MgO coating on microstructure and dielectric properties of BaTiO3

Park, Jae Sung; Han, Young Ho

doi:10.1016/j.jeurceramsoc.2006.05.073

Cited by 42 publications

(20 citation statements)

References 22 publications

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“…Similarly, the MgO phase with 8.9 and 15.8 wt% was observed in powders with 10 and 20 at% Mg prepared by solid state reaction technique. It has been reported that the substitution limit of Mg in CaTiO 3 was approximately 5 at% [21]. In this study, formation of MgO secondary phase was observed in samples with 10 and 20 at% Mg.…”

Section: Effects Of Synthesis Techniques On the Powders' Chemical Comsupporting

confidence: 54%

Effects of synthesis techniques on chemical composition, microstructure and dielectric properties of Mg-doped calcium titanate

Jongprateep¹,

Sato²

2018

AIP Conference Proceedings

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Chemical synthesis and characterization of hollow dopamine coated, pentagonal and flower shaped magnetic iron oxide nanoparticles AIP Conference Proceedings 1957, 020004 (2018) Compositional analysis revealed that powder synthesis techniques did not exhibit a significant effect on formation of secondary phases. When Mg concentration did not exceed 5 at%, the powders prepared by both techniques contained only a single phase. An increase of MgO secondary phase was observed as Mg concentrations increased from 10 to 20 at%. Experimental results, on the contrary, revealed that powder synthesis techniques contributed to significant differences in microstructure. Solution combustion technique produced powders with finer particle sizes, which consequently led to finer grain sizes and density enhancement. High-density specimens with fine microstructure generally exhibit improved dielectric properties. Dielectric measurements revealed that dielectric constants of all samples ranged between 231 and 327 at 1 MHz, and that superior dielectric constants were observed in samples prepared by the solution combustion technique.

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Section: Effects Of Synthesis Techniques On the Powders' Chemical Comsupporting

confidence: 54%

Effects of synthesis techniques on chemical composition, microstructure and dielectric properties of Mg-doped calcium titanate

Jongprateep¹,

Sato²

2018

AIP Conference Proceedings

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“…It has been shown for BaTiO 3 that the non-uniform distribution of the dopant within the grain interior, and with a higher concentration of the dopant in the boundary region, limits the grain growth. Examples include BaTiO 3 doped with Nb, 21 Bi/Nb, 22 Ce, 23 La, 24 and Mg. 25 We further measured the dielectric and piezoelectric properties of KNN and KNN-ZrO 2 ceramics. The dielectric permittivity, losses and piezo d 33 constant of KNN are 580, 0.08 and 80 pC/N, in agreement with reported data.…”

Section: Resultsmentioning

confidence: 99%

Influence of zirconia addition on the microstructure of K0.5Na0.5NbO3 ceramics

Malič

Bernard

Benčan

et al. 2008

Journal of the European Ceramic Society

123

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“…However, such composite dielectrics are known to perform usually in rather high dielectric loss in the range of 0.01–0.1 2,8,9 . Up to date, the main focus of Ba x Sr 1− x TiO 3 /MgO systems has been on the investigation of tunability and dielectric loss for microwave‐tunable applications; 10–12 very few work has been devoted to the study of electric energy density and dielectric loss of the Ba x Sr 1− x TiO 3 /MgO composites for SSPFL.…”

Section: Introductionmentioning

confidence: 99%

Ba_0.4Sr_0.6TiO₃/MgO Composites with Enhanced Energy Storage Density and Low Dielectric Loss for Solid‐State Pulse‐Forming Line

Zhang

Wang

Luo

et al. 2010

Int J Applied Ceramic Tech

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(100Àx) wt% Ba 0.4 Sr 0.6 TiO 3 Àx wt% MgO composites (10rxr30) were prepared using Ba 0.4 Sr 0.6 TiO 3 powder and nanosized MgO powder (B60 nm) by a solid-state reaction. The energy storage density and dielectric loss were investigated for the purpose of a potential application in solid-state pulse-forming line. The results show that Ba 0.4 Sr 0.6 TiO 3 /MgO composites exhibit a notably enhanced energy density and low dielectric loss, compared with pure Ba 0.4 Sr 0.6 TiO 3 . The enhancement of the energy density is attributed to the notable increase in breakdown strength of the composites and the improvement of dielectric constant stability with regard to electric field. In the case of x 5 30, the samples exhibited a breakdown strength of 33.1 kV/mm, an energy density of 1.14 J/cm 3 , a moderate dielectric constant of 270, and a low dielectric loss of 4 Â 10 À4 .

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Effects of MgO coating on microstructure and dielectric properties of BaTiO3

Cited by 42 publications

References 22 publications

Effects of synthesis techniques on chemical composition, microstructure and dielectric properties of Mg-doped calcium titanate

Effects of synthesis techniques on chemical composition, microstructure and dielectric properties of Mg-doped calcium titanate

Influence of zirconia addition on the microstructure of K0.5Na0.5NbO3 ceramics

Ba_0.4Sr_0.6TiO₃/MgO Composites with Enhanced Energy Storage Density and Low Dielectric Loss for Solid‐State Pulse‐Forming Line

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Effects of MgO coating on microstructure and dielectric properties of BaTiO3

Cited by 42 publications

References 22 publications

Effects of synthesis techniques on chemical composition, microstructure and dielectric properties of Mg-doped calcium titanate

Effects of synthesis techniques on chemical composition, microstructure and dielectric properties of Mg-doped calcium titanate

Influence of zirconia addition on the microstructure of K0.5Na0.5NbO3 ceramics

Ba0.4Sr0.6TiO3/MgO Composites with Enhanced Energy Storage Density and Low Dielectric Loss for Solid‐State Pulse‐Forming Line

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Ba_0.4Sr_0.6TiO₃/MgO Composites with Enhanced Energy Storage Density and Low Dielectric Loss for Solid‐State Pulse‐Forming Line