Compositionally graded multilayer BaxSr0.95−xCa0.05TiO3 ceramics prepared by tape casting for use as dielectric materials

Jia, Qian; Ji, Hui Ming; Li, Xiao Lei; Xing, Yong Hui; Liang, Hui

doi:10.1007/s10854-011-0328-7

Cited by 5 publications

(3 citation statements)

References 19 publications

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“…Moreover, the lower dielectric constant had much intimate relationship with the small BSCT grains. The dielectric loss of the BSCT-MgO composite ceramics was 0.0012 (RT, 1 MHz) which was lower than that of the pure BSCT ceramics in our former work [(tand) BSCT = 0.0020, RT, 1 MHz] [30]. The lower dielectric loss should be attributed to the dense microstructure of the BSCT-MgO composite ceramics.…”

Section: Dielectric Properties Of the Bsct-mgo Composite Ceramicscontrasting

confidence: 53%

“…The ferroelectric-paraelectric phase transition temperature (Currie temperature, T C ) of the sample was -10°C. It was lower compared with the pure Ba 0.55 Sr 0.4 Ca 0.05 TiO 3 (BSCT) ceramics which had been tested in our previous work [30]. The T C would shift to lower temperature when MgO was added into the BST ceramics [31].…”

Section: Dielectric Properties Of the Bsct-mgo Composite Ceramicsmentioning

confidence: 71%

“…8, the maximum dielectric constant of the BSCT-MgO composite ceramics was 210. It was much lower than that of the pure BSCT ceramics which was 4,500 [30]. This could be attributed to the addition of MgO and MnO 2 as non-ferroelectric phases which would dilute the ferroelectric properties of the BST ceramics [32].…”

Section: Dielectric Properties Of the Bsct-mgo Composite Ceramicsmentioning

confidence: 83%

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Two-step sol–gel method for preparing MgO–MnO2–B2O3–Li2O co-added core-shell structural Ba0.55Sr0.40Ca0.05TiO3 powders and the dielectric properties of the composite ceramics

Liu

et al. 2011

J Mater Sci: Mater Electron

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The Ba 0.55 Sr 0.4 Ca 0.05 TiO 3 -MgO (BSCT-MgO) composite powders possessing core-shell structure, small particle size and high specific surface area were prepared by the novel two-step sol-gel method which was based on the citric acid (CA)-ethylene glycol (EG) system. In this experiment, the Ba 0.55 Sr 0.40 Ca 0.05 TiO 3 (BSCT) powders were firstly synthesized by chemical co-precipitation method. MgO [(MgO/BSCT) mass = 1] and MnO 2 [(MnO 2 / BSCT) mole = 0.01] were added into the BSCT powders in the first sol-gel step. 1.5 wt% B 2 O 3 -Li 2 O as sintering aids was added into the composite powders during the second sol-gel step. The BSCT-MgO composite powders were detected to have a perfect core-shell structure which was detected by the transmission electron microscope. Perovskite BSCT and periclase MgO were confirmed to exist in the BSCT-MgO composite powders according to the X-ray diffraction patterns. The Ba 0.55 Sr 0.4 Ca 0.05 TiO 3 -MgO (BSCT-MgO) composite ceramics that synthesized with the core-shell powders were sintered at 1,000°C for 2 h. According to the scanning electron microscope images, the grain sizes of BSCT and MgO in the BSCT-MgO composite ceramics were in the range of 0.5-2.0 lm and 1.0-2.5 lm, respectively. The dielectric constant of the BSCT-MgO composite ceramics was 210 and the dielectric loss was 0.0012 when tested at 1 MHz, room temperature. The BSCT-MgO composite ceramics were expected to be a promising candidate for applying as phase shifters or tunable components, etc, in the microwave field.

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Section: Dielectric Properties Of the Bsct-mgo Composite Ceramicscontrasting

confidence: 53%

Section: Dielectric Properties Of the Bsct-mgo Composite Ceramicsmentioning

confidence: 71%

Section: Dielectric Properties Of the Bsct-mgo Composite Ceramicsmentioning

confidence: 83%

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Two-step sol–gel method for preparing MgO–MnO2–B2O3–Li2O co-added core-shell structural Ba0.55Sr0.40Ca0.05TiO3 powders and the dielectric properties of the composite ceramics

Liu

et al. 2011

J Mater Sci: Mater Electron

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A simple sol–gel route for preparing the Barium Strontium Calcium Titanate-Magnesium Oxide composite powders and the sintering/dielectric properties of the ceramics

Liu

et al. 2012

J Mater Sci: Mater Electron

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Structural, electrical, magnetic and magnetoelectric properties of (1−y) [Ba 0.6−x Ca x Sr 0.4 Zr 0.25 Ti 0.75 O 3 ] + (y) [(Li 0.5 Fe 0.5 ) 0.4 Ni 0.18 Cu 0.12 Zn 0.3 Fe 2 O 4 ] composites

Saha

Rahaman

Zubair

et al. 2017

Journal of Alloys and Compounds

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Compositionally graded multilayer BaxSr0.95−xCa0.05TiO3 ceramics prepared by tape casting for use as dielectric materials

Cited by 5 publications

References 19 publications

Two-step sol–gel method for preparing MgO–MnO2–B2O3–Li2O co-added core-shell structural Ba0.55Sr0.40Ca0.05TiO3 powders and the dielectric properties of the composite ceramics

Two-step sol–gel method for preparing MgO–MnO2–B2O3–Li2O co-added core-shell structural Ba0.55Sr0.40Ca0.05TiO3 powders and the dielectric properties of the composite ceramics

A simple sol–gel route for preparing the Barium Strontium Calcium Titanate-Magnesium Oxide composite powders and the sintering/dielectric properties of the ceramics

Structural, electrical, magnetic and magnetoelectric properties of (1−y) [Ba 0.6−x Ca x Sr 0.4 Zr 0.25 Ti 0.75 O 3 ] + (y) [(Li 0.5 Fe 0.5 ) 0.4 Ni 0.18 Cu 0.12 Zn 0.3 Fe 2 O 4 ] composites

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