Preparation and dielectric properties of barium strontium titanate glass-ceramics sintered from sol–gel-derived powders

Wang, Jiangying; Yao, Xi; Zhang, Liangying

doi:10.1016/j.ceramint.2003.12.134

Cited by 40 publications

(22 citation statements)

References 7 publications

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“…The dielectric permittivity generally is increased and dielectric dissipation is decreased as the sintering temperature is increased in Zn-B-Si-O added BST glass-ceramics. The dielectric peaks of BST glass-ceramics become lower and broader with decrease of grain size [128].…”

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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“…Barium Strontium Titanate with general formula Ba1-xSrxTiO3 (BST) is among the most widely studied ferroelectric materials. It is extensively used in several applications such as multilayer ceramic capacitors, tunable microwave devices and also as insulators in dynamic random-access memory (DRAM) [14][15][16][17][18][19]. BST is a ferroelectric material that exhibits high dielectric constant (ε') and has a tunable Curie temperature (Tc) by modifying the mole fraction of Ba 2+ /Sr 2+ .…”

Section: Introductionmentioning

confidence: 99%

Direct electrocaloric, structural, dielectric, and electric properties of lead-free ferroelectric material Ba0.9Sr0.1Ti1-xSnxO3 synthesized by semi-wet method

Zaitouni

Hajji

Mezzane

et al. 2019

Physica B: Condensed Matter

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By using the semi-wet synthesis method, lead-free ferroelectric materials Ba0.9Sr0.1Ti1-xSnxO3 with x = 0, 0.02, 0.05, and 0.10 (abbreviated as BSTS) were prepared and their structural, electric and electrocaloric properties were investigated. The X-ray diffraction (XRD) patterns show that the samples calcined at 950°C have well crystallized into perovskite structure suggesting the substitution of Ti 4+ by Sn 4+ in BST lattice. With increasing content of Sn, the enhancement of the dielectric permittivity was observed for (0≤x≤0.05) and the ferroelectric transition temperature (TC) was found to shift towards the room temperature (TC = 20°C for x = 0.10). Direct measurements of the electrocaloric effect (ECE) were performed on all samples by using the highresolution calorimeter. It is found that Ba0.9Sr0.1Ti0.95Sn0.05O3 exhibits a high ECE temperature change of TEC = 0.188 K at an applied electric field of only 7 kV/cm. Impedance spectrum analysis of all the samples performed in the temperature range of 300-360°C reveals the existence of two relaxation contributions related to the grain and grain boundaries that are well separated in frequency. Activation energies of conduction and relaxation processes were deduced for both contributions in order to determine the conduction mechanism of the studied compositions.2

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“…This is due to the diffraction by the edge corner of the rectangular BST and the ground plane [39][40][41][42][43][44][45][46][47][48][49]. Furthermore, any scattering from the cable and the connector will affect the radiation patterns because they lie directly in line with the pattern cut [47][48][49][50][51][52][53].…”

Section: Radiation Patternmentioning

confidence: 99%

Investigation of the Characteristics of Barium Strontium Titanate (Bst) Dielectric Resonator Ceramic Loaded on Array Antennas

Wee¹,

Malek²,

Sreekantan³

et al. 2011

PIER

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Abstract-We investigated a dielectric resonator ceramic microstrip patch antenna. The antenna was formed using barium strontium titanate (BST), which had a dielectric constant of 15. A new approach, i.e., the use of a high temperature dielectric probe kit, was used to determine the dielectric constant of BST. A computer simulation technology (CST) microwave studio was used to simulate the BST array antennas, taking into consideration the dielectric constant. We also measured the gain of the antennas loaded with two-, four-, and six-element arrays of the BST antenna and found that the gain of a six-element BST array antenna was enhanced by a gain of about 1.6 dB over the four-element BST array antenna at 2.3 GHz. The impedance bandwidths of these BST array antennas for voltage standing wave ratio (VSWR) < 2 were in the application ranges,

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Preparation and dielectric properties of barium strontium titanate glass-ceramics sintered from sol–gel-derived powders

Cited by 40 publications

References 7 publications

Dielectric behavior of perovskite glass ceramics

Dielectric behavior of perovskite glass ceramics

Direct electrocaloric, structural, dielectric, and electric properties of lead-free ferroelectric material Ba0.9Sr0.1Ti1-xSnxO3 synthesized by semi-wet method

Investigation of the Characteristics of Barium Strontium Titanate (Bst) Dielectric Resonator Ceramic Loaded on Array Antennas

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