Electrical Characteristics of Nb Doped BaTiO3 Ceramics

Paunović, Vesna; Marjanovic, Milos; Đorđević, Miloš; Mitić, Vojislav V.; Kocić, Ljubiša

doi:10.2991/978-94-6239-157-4_10

Cited by 2 publications

(2 citation statements)

References 14 publications

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“…Sintering of BaTiO 3 -based dielectrics, including BST, is an intriguing topic of practical importance [7,8]. A variety of strategies have been employed to lower the sintering temperature of BST ceramics, such as adopting highly sinter-active BST powders synthesized by wet chemical routes as the starting powders [9,10], preparing the ceramics using novel sintering techniques [11,12] and adding sintering aids [13][14][15][16][17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Enhanced sintering and nonlinear dielectric properties of Ba0.6Sr0.4TiO3 ceramics with a small amount of lithium additive

Zhang

Xie

et al. 2019

SCI SINTER

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The powders with the nominal compositions of Ba0.6Sr0.4TiO3+x wt.% Li2CO3 (x=0 and x=1.0) were synthesized by a citrate precursor method. The sintering behavior, structure and dielectric properties of the ceramic specimens were investigated. Compared with the lithium-free specimen (x=0), the lithium-added specimen (x=1.0) showed appreciably enhanced sintering properties, achieving a relative density of 96.0% after sintering at 900?C. The enhanced sintering properties were related to a liquid-phase sintering mechanism. The origin of the liquid-phase was explained. The effects of the liquid-phase on the densification progress of the lithium-added specimen in different sintering stages were elucidated. The lithium addition was found to be beneficial to the nonlinear dielectric properties. The ceramic specimen with x=1.0 exhibited a figure-of-merit of 106 under a bias electric field of 20 kV/cm, higher by ~60% than the value (67) for the specimen with x=0.

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Section: Introductionmentioning

confidence: 99%

Enhanced sintering and nonlinear dielectric properties of Ba0.6Sr0.4TiO3 ceramics with a small amount of lithium additive

Zhang

Xie

et al. 2019

SCI SINTER

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“…BaTiO 3 has been the most extensively investigated lead-free ferroelectric material [9], it has been widely used in practical applications, and allows for easy incorporation of 3d and 4d transition metals as a substitute for the titanium atom to produce ferromagnetism [10].…”

Section: Introductionmentioning

confidence: 99%

Influence of mechanical activation on functional properties of barium hexaferrite ceramics

Kosanović

Blagojević

Maricic

et al. 2018

Ceramics International

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Barium hexaferrite ceramics were prepared using mechanically activated mixtures of iron and barium titanate. The 60:40 mass% Fe:BaTiO 3 powder mixtures were mechanically activated for different times (100-240 min) and sintered at 1100 and 1200 o C in order to determine the influence of mechanical activation of the precursor on the magnetic and dielectric properties of the resulting barium hexaferrite ceramics. The final product contained 84-89 mass% of Ba 2 Fe 22.46 O 38 Ti 1.54 phase, with higher content corresponding to longer mechanical activation of the precursor. XRD and Raman measurements indicated that the remainder of the sample consists of leftover BaTiO 3 and hematite, which was formed by the oxidation of iron during mechanical activation and sintering in air. Magnetic properties of samples sintered at 1200 o C are superior to those sintered at 1100 o C, which can be attributed to higher Ba 2 Fe 22.46 O 38 Ti 1.54 phase content. The position of the Curie temperature in 350-420 o C temperature region is consistent with 0.8:1 ratio of Ti to Ba. Maximum magnetization was observed for samples activated for 120 min. Dielectric properties of samples sintered at 1200 o C showed a dependence on frequency, with a significant drop in relative permittivity with an increase in

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Electrical Characteristics of Nb Doped BaTiO3 Ceramics

Cited by 2 publications

References 14 publications

Enhanced sintering and nonlinear dielectric properties of Ba0.6Sr0.4TiO3 ceramics with a small amount of lithium additive

Enhanced sintering and nonlinear dielectric properties of Ba0.6Sr0.4TiO3 ceramics with a small amount of lithium additive

Influence of mechanical activation on functional properties of barium hexaferrite ceramics

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