Lanthanum doping effect in barium strontium titanate glass ceramics

Xiang-rong, Wang; Zhang, Yong; Zhu, Jialin; Song, Xiaozhen; Lv, Ruifang; Liu, Jianan; Zhang, Meimei

doi:10.1016/j.ceramint.2014.08.010

Cited by 16 publications

(5 citation statements)

References 30 publications

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“…The lanthanum ions are diffused into the lattice structure and modified the tetragonality of the barium strontium titanate phase [165]. The donor dopant La 2 O 3 in BST glass ceramics enhances the dielectric constant due to interfacial polarization.…”

Section: Lead Titanate Glass Ceramicsmentioning

confidence: 99%

Dielectric behavior of perovskite glass ceramics

Yadav

Gautam

2014

J Mater Sci: Mater Electron

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The recent developments of energy storage devices are concerned with larger energy storage ability, low loss and good temperature stability. It has a great technological importance in engineering science. The dielectric materials like ceramics and glass ceramics have great interest in electronic ceramic industry due to above concern. The ceramic dielectrics are used as a capacitive element in electronic circuits. The perovskite glass ceramics have very high dielectric constant and low dielectric loss. The high dielectric constant in glass ceramics is attributed to space charge polarization. In order to produce glass ceramics of high dielectric constant, barium titanate glass ceramics is the first discovered ferroelectric perovskite. In this review article, we are summarizing the dielectric behavior of perovskite glass ceramics such as

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Section: Lead Titanate Glass Ceramicsmentioning

confidence: 99%

Dielectric behavior of perovskite glass ceramics

Yadav

Gautam

2014

J Mater Sci: Mater Electron

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“…By substituting Sr with Ba in the lattice position of alkaline earth elements, the cubic perovskite crystallographic structure changes into a tetragonal one due to the larger ionic radius of barium ion, which is inducing a change in physical properties, that is, the positive temperature coefficient of resistivity 3 . Additionally, the properties of this class of materials can be strongly influenced by doping with different elements like Nb, La, Fe, Mn, Ce etc 4–8 . BTO is used in piezoelectric devices like loudspeaker 9 and ultrasonic transducers 10 .…”

Section: Introductionmentioning

confidence: 99%

“…3 Additionally, the properties of this class of materials can be strongly influenced by doping with different elements like Nb, La, Fe, Mn, Ce etc. [4][5][6][7][8] BTO is used in piezoelectric devices like loudspeaker 9 and ultrasonic transducers 10 . STO is used in gas sensors in harsh environments 11,12 and for thermoelectric energy conversion, 13 just to mention a few examples.Common synthesis routes for synthesis of Ba/Sr titanates are solid-state and sol-gel methods.…”

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confidence: 99%

Synthesis of Sr‐ and Ba titanate particles coated on Al₂O₃substrates forming a core‐shell structure

Lehmann

Bauer

Ensinger

2020

Int J Applied Ceramic Tech

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Sr‐ and Ba titanate particles doped with Nb, Mn, and Ce were produced via a wet‐chemical precipitation process based on salt solutions and metal chlorides around Al2O3 flake‐like particles. In a calcination process at high temperatures, a shell of doped oxides is formed that is responsible for the unusual electrical properties. The particles were investigated via scanning electron microscope (SEM) and transmission electron microscope which showed homogeneously covered Al2O3 particles. X‐ray diffraction exposed secondary phases besides BaTiO3 and SrTiO3 because of the high solubility of Ba(OH)2 and Sr(OH)2 in water and a resulting shortfall of earth alkaline metal. The oxidation states of the doping elements were determined via X‐ray photoelectron spectroscopy. Composite materials prepared from this filler and silicone rubber showed typical nonlinear voltage‐current (U‐I) characteristics, which are of special interest for high voltage engineering. The filler was evenly distributed within the matrix without settling while cross‐linking of the polymer, which was shown in an SEM‐backscattered electron image. The nonlinearity coefficient α, which is an important factor for field grading applications, was determined for different materials and reached a value of up to 7.

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“…Additionally, glassy matrix acts as a protection of the nanocrystalline magnetic material. [1][2][3][4] Glassceramics combined with multi ferroic phases have many device applications as control the magnetic state via local electric fields, the combination of ferroelectric and ferromagnetic phases allows store information on the basis of their polarization 5 encoded in the direction of the electric polarization and magnetization, yielding spintronics and non-volatile data storage, multistate permanent memory device. 6,7 Some works have reported the development of such materials: Bi 2 O 3 -Fe 2 O 3 -BaO-B 2 O 3 in which BiFeO 3 phase was crystallizable given a glass-ceramics; 8 nanocomposites containing nanocrystals of Te 2 NiMnO 6 synthesized by heat treatment 9 etc.…”

Section: Introductionmentioning

confidence: 99%

Electrical and magnetic response of a phosphate glass - NiFe2O4 composite. A novel magnetic sensor design

Ma¹,

Pratula²,

Ca³

et al. 2019

MSEIJ

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NiFe 2 O 4 spinel -phosphate (Bi-Ba-Li) glass composite was synthesized by solid-state reaction. New crystalline magnetic phases was developed inside the glassy matrix through a controlled heat treatment. New NF-LBPB4 magnetic nanocomposite material was study. Complex impedance analysis has shown that mobile ions inside the matrix induce the development of complementary crystalline phases resulting in a composite material with excellent magnetic response. An innovative homemade device was designed to test the nanocomposite magnetic response.

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Lanthanum doping effect in barium strontium titanate glass ceramics

Cited by 16 publications

References 30 publications

Dielectric behavior of perovskite glass ceramics

Dielectric behavior of perovskite glass ceramics

Synthesis of Sr‐ and Ba titanate particles coated on Al₂O₃substrates forming a core‐shell structure

Electrical and magnetic response of a phosphate glass - NiFe2O4 composite. A novel magnetic sensor design

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Lanthanum doping effect in barium strontium titanate glass ceramics

Cited by 16 publications

References 30 publications

Dielectric behavior of perovskite glass ceramics

Dielectric behavior of perovskite glass ceramics

Synthesis of Sr‐ and Ba titanate particles coated on Al2O3substrates forming a core‐shell structure

Electrical and magnetic response of a phosphate glass - NiFe2O4 composite. A novel magnetic sensor design

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Synthesis of Sr‐ and Ba titanate particles coated on Al₂O₃substrates forming a core‐shell structure