A coexistence of multi-relaxor states in 0.5BiFeO3–0.5BaTiO3

Wei, Yongxing; Jin, Changqing; Zeng, Yiming; Wang, Xiaotao; Gao, Dong; Wang, Xiaoli

doi:10.1016/j.ceramint.2017.09.030

Cited by 13 publications

(2 citation statements)

References 34 publications

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“…(7) In addition, several groups have examined the use of BiFeO 3 in communication components. (8)(9)(10)(11) In this study, we fabricated a Bi 12 CeO 20 -BiFeO 3 substrate for ceramic antenna temperature sensors and evaluated its microwave dielectric properties. We then analyzed the density, X-ray diffraction (XRD) patterns, and microstructures of the ceramics.…”

Section: Introductionmentioning

confidence: 99%

Dielectric Properties of Low-sintering-temperature Bi12CeO20–BiFeO3 Ceramics at Microwave Frequency

Hsu,

Huang

2024

Sensors and Materials

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BiFeO 3 ceramic, antenna temperature sensorIn this study, we prepared (1 − x)Bi 12 CeO 20 -xBiFeO 3 ceramics using conventional solid-state methods with various material compositions and sintering temperatures. X-ray diffraction and scanning electron microscopy were employed to analyze the composition of the ceramic microstructures. In experiments, as x increased, the dielectric constant and τ f value increased, and the Q × f value decreased. We also investigated the correlation between the relative proportions of two ceramic substances and their microwave dielectric properties. The Bi 12 CeO 20 -BiFeO 3 ceramic system is suitable for use as a substrate in low-temperature cofired ceramic antenna temperature sensors.Yu-Kai Huang received his B.S. and M.S. degrees from National United University, Taiwan, in 2015 and 2020, respectively. His research interests are in microwave dielectric materials, and antenna design.

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Section: Introductionmentioning

confidence: 99%

Dielectric Properties of Low-sintering-temperature Bi12CeO20–BiFeO3 Ceramics at Microwave Frequency

Hsu,

Huang

2024

Sensors and Materials

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“…From the viewpoint of general theories and experiments, superior ferroelectric properties can be obtained through reduction of leakage current due to the suppression of oxygen vacancies with single doping or co-doping in BFO. Among these doped elements, Sm, La, Ca, Sr, Sc, V, Ni, Gd, Mn, Ti and Co, partially substituted at the A site or B site or both of A and B sites, have been reported to suppress the cycloid structure and therefore enhance homogenization of spin arrangement, improve the ferroelectric behaviour, and intensify the magneto-electric coupling in BFO [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Dielectric, ferroelectric and magnetic properties of Bi0.78La0.08Sm0.14Fe0.85Ti0.15O3 ceramics prepared at different sintering conditions

Li¹,

Wang²,

Gao³

et al. 2018

PAC

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Although BiFeO 3 (BFO) has attracted great attention due to its special physical properties as a typical single phase multiferroic material, the application is limited due to the formation of impurities, defects and so forth. Herein, we report improved multiferroic properties of Bi 0.78 La 0.08 Sm 0.14 Fe 0.85 Ti 0.15 O 3 (BLSFTO) ceramics by combination of co-doping and sintering schedule. BLSFTO multiferroic ceramics were prepared by using the conventional solid state reaction method and the effect of sintering time (2, 5, 10, 20 and 30 h) on the structural, dielectric and multiferroic properties was investigated systematically. The result indicates that stable BLSFTO phase with perovskite structure was formed for all the samples. Only some impurities such as Bi 2 O 4 can be observed when the sintering time is longer than 20 h, indicating that the sintering time can induce structural changes in BLSFTO and too long sintering time can remarkably increase the secondary phases. In addition, the frequency dependent dielectric properties show that sintering time has distinct effect on the frequency stability and the relaxation process. The result demonstrates that the enhanced magnetization, improved dielectric and ferroelectric properties may be correlated with the structural transformation, impurities, oxygen vacancies and grain morphology.

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Structure, dielectric behaviours, enhanced polarization responses and energy storage properties in (1 − x)SrTiO3–xBi(Mg1/2Ti1/2)O3 ceramics

Wei

Jin

et al. 2018

Appl. Phys. A

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A coexistence of multi-relaxor states in 0.5BiFeO3–0.5BaTiO3

Cited by 13 publications

References 34 publications

Dielectric Properties of Low-sintering-temperature Bi12CeO20–BiFeO3 Ceramics at Microwave Frequency

Dielectric Properties of Low-sintering-temperature Bi12CeO20–BiFeO3 Ceramics at Microwave Frequency

Dielectric, ferroelectric and magnetic properties of Bi0.78La0.08Sm0.14Fe0.85Ti0.15O3 ceramics prepared at different sintering conditions

Structure, dielectric behaviours, enhanced polarization responses and energy storage properties in (1 − x)SrTiO3–xBi(Mg1/2Ti1/2)O3 ceramics

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