Dielectric studies of barium bismuth titanate as a material for application in temperature sensors

Cvejin, Katarina; Mojić, Bojana; Samardžić, Nataša; Srdić, Vladimir V.; Stojanović, Goran M.

doi:10.1007/s10854-012-0914-3

Cited by 6 publications

(6 citation statements)

References 15 publications

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“…The temperature coefficient of dielectric constant is found to vary from ?3.72 9 10 -3 to -2.85 9 10 -3 1/°C. Both the classical and relaxor behaviors of barium bismuth titanate are found in barium bismuth titanate [174].…”

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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“…It is know that relaxor ferroelectrics, to which group belongs BBT, have broad and dispersive dielectric maximum. Accordingly, strong temperature dependence of permittivity was found in the particular temperature range for particular frequencies, as show in [ 13 ]. It is worth mentioning that resonant frequency belongs to the very high frequency range, thus measuring with some Vector Network Analyzer E5071B is not possible, because of that we used VNA for experimental characterization (which can cover frequency range up to 8.5 GHz).…”

Section: Resultsmentioning

confidence: 87%

“…Nanocrystalline bismuth doped barium titanate (Ba 0.9 Bi 0.066 TiO 3 , BBT) powder was synthesized as described in more details further in the paper [ 13 ]. Powder preparation process is shown schematically in Figure 3 .…”

Section: Coating Of Interdigitated Capacitor Electrodes With Bbt Fmentioning

confidence: 99%

“…Upon dielectric measurements, the sensor was additionally thermally treated at 800 °C for 1 h, in order to examine potential impact of sintering temperature on the performance of the fabricated sensor. Dielectric behavior of bismuth doped barium titanate (BBT) with various Bi 3+ /Ba 2+ ratios was investigated in [ 13 ], in the temperature range 25–190 °C. Results obtained in [ 13 ] implied that barium bismuth titanate could be used as a sensitive layer of a passive LC temperature sensor.…”

Section: Coating Of Interdigitated Capacitor Electrodes With Bbt Fmentioning

confidence: 99%

“…Dielectric behavior of bismuth doped barium titanate (BBT) with various Bi 3+ /Ba 2+ ratios was investigated in [ 13 ], in the temperature range 25–190 °C. Results obtained in [ 13 ] implied that barium bismuth titanate could be used as a sensitive layer of a passive LC temperature sensor. In the present study it is shown that BBT layer screen printed over an interdigitated capacitor can be used as a temperature sensitive layer in passive LC temperature sensors.…”

Section: Coating Of Interdigitated Capacitor Electrodes With Bbt Fmentioning

confidence: 99%

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A Wireless LC Sensor Coated with Ba0.9Bi0.066TiO3 for Measuring Temperature

Radovanović

Mojic-Lante

Cvejin

et al. 2015

Sensors

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This paper presents a passive LC wireless sensor for measuring temperature. The sensor is designed as a parallel connection of a spiral inductor and an interdigitated capacitor and it was fabricated in a conductive layer using LTCC (Low Temperature Co-fired Ceramic) technology. The inderdigitated capacitor electrodes were coated with a thin film of bismuth doped barium titanate (Ba0.9Bi0.066TiO3), whose permittivity changes with temperature, which directly induces changes in the capacitance of the interdigitated capacitor and consequently changes the resonant frequency of the sensor. The measurements of S-parameter of the sensor were performed using a Vector Network Analyzer (E5071B, Agilent Technologies, Santa Clara, CA, USA), whose port was connected to the antenna coil that was placed around the sensor in order to be able to wirelessly detect temperature, in the temperature range from 25 °C to 165 °C.

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