Effect of microstructure on lifetime performance of barium titanate ceramics under DC electric field loading

Chen, Yinhua; Tuan, Wei‐Hsing; Shieh, Jay

doi:10.1016/j.jeurceramsoc.2010.05.015

Cited by 8 publications

(6 citation statements)

References 22 publications

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“…These microcracks serve as the origin for fatigue crack growth, local electric discharge, and failure during bipolar cycling leading to a decrease in strength with increasing fraction of coarse grains. In contrast, the reliability of BaTiO 3 ceramics under a DC load does not depend on the fraction of coarse grains, even though samples with a bimodal grain distribution show lower fatigue strength compared to samples consisting of only small grains …”

Section: Fatigue Of Lead‐free Ferroelectricsmentioning

confidence: 91%

Electric Fatigue of Lead‐Free Piezoelectric Materials

2014

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A considerable body of knowledge now exists from studies involving the development of lead-free piezoelectric ceramics and a number of high potential alternatives to current leadbased materials have been identified. Stability under cyclic electric fields is an important property of piezoelectric materials. Here, we review the research to date which shows that fatigue under cyclic electrical loading is prevalent in many lead-free piezoelectric ceramic compositions. However, the variety of compositions and mechanisms for piezoelectric behavior in these materials corresponds to significant variances in the nature of fatigue degradation and the likely mechanisms thereof, which do not directly parallel those of well-studied lead-based materials. In particular, the use of field-induced phase changes as an actuation mechanism provides distinctive fatigue behaviors. Particular attention is given to fatigue of ferroelectric and relaxor (ergodic and nonergodic) structures and their dependence upon temperature and electric field and the potential design of materials with high fatigue resistance.

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Section: Fatigue Of Lead‐free Ferroelectricsmentioning

confidence: 91%

Electric Fatigue of Lead‐Free Piezoelectric Materials

2014

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“…5,9,17 However, BTO, being a wide band gap ($3.3 eV) semiconductor, cannot be employed for FE-PV applications, especially in the visible spectral region. Reportedly, multilayered structures possess superior ferroelectric properties compared to individual parent materials in terms of high polarization, high dielectric constant, and relatively lower losses.…”

Section: Introductionmentioning

confidence: 99%

Enhanced ferroelectric photovoltaic response of BiFeO3/BaTiO3 multilayered structure

Sharma

Tomar

Kumar

et al. 2015

Journal of Applied Physics

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High quality multiferroic BiFeO3 films prepared by pulsed laser deposition on glass substrates at reduced temperatures J. Appl. Phys. 113, 17D917 (2013) The present work is based on the photovoltaic properties of multilayered structure of Bismuth ferrite (BFO) and Barium titanate (BTO) thin films prepared by pulsed laser deposition technique on platinum coated silicon substrate. The multilayered structure possesses enhanced ferroelectric properties and shows a remarkable increase in photocurrent (from 1.56 Â 10 À7 A to 6.96 Â 10 À5 A) upon illumination with laser light of wavelength 405 nm at an intensity of 160 mW/cm 2 . The values of short circuit photocurrent and open circuit voltage were found to be 0.3184 mA/cm 2 and À1.25 V, respectively, with a light-to-electricity conversion efficiency of 0.067%. A relatively high efficiency calculated at 405 nm for the developed multilayered BFO/BTO structure highlights its practical application in ferroelectric photovoltaics. V C 2015 AIP Publishing LLC.

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“…It is known that the core-shell structure in BaTiO 3 can be induced by the inclusion of rare-earth elements and affects the dielectric properties, such as phase transition temperature (T c ) and temperature coefficient of capacitance (TCC). 10,11) The dielectric properties of the MLCCs sintered with different glass powders are summarized in Table I. The dielectric constant, time constant ( ¼ RC), and dielectric loss slightly decreased presumably owing to the smaller grain size of the plasma-treated powder, but MTTF significantly increased.…”

Section: Resultsmentioning

confidence: 99%

“…It is known that the formation of coarse abnormal grains in the BaTiO 3 ceramics should be avoided in order to achieve a long lifetime under DC electrical loading. [10][11][12][13] In particular, as the particle size of the starting BaTiO 3 powder is small, densification while retaining the small grain size without abnormal grain growth is also required in the MLCC process. In general, the microstructure and dielectric properties of BaTiO 3 are sensitive to the composition, nonstoichiometry, [14][15][16] and amount of additives.…”

Section: Introductionmentioning

confidence: 99%

Electrical Properties of BaTiO₃-Based Multilayer Ceramic Capacitors Sintered with Plasma-Treated Glass Powder

Jeong¹,

Lee²,

Lee³

et al. 2013

Jpn. J. Appl. Phys.

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The influence of glass power morphology on the electrical and microstructural properties of BaTiO3-based multilayer ceramic capacitors (MLCCs) was investigated to enhance the reliability of MLCCs. For a sintering additive, glass particles of different sizes and shapes were prepared by jet-milling and RF plasma treatment. Plasma treatment decreased the glass particle size and transformed the irregular shape of glass particles into homogeneous spherical shapes. It was found that MLCCs sintered with plasma-treated glass powder have a more homogeneous microstructure, a clear core–shell structure, a more stable capacitance against voltage and temperature changes, and a higher degradation resistance. It is inferred that nanosized spherical glass powder prepared by plasma treatment helps so-called magic dopants such as rare-earth elements to be distributed homogeneously around the BaTiO3 particles.

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Effect of microstructure on lifetime performance of barium titanate ceramics under DC electric field loading

Cited by 8 publications

References 22 publications

Electric Fatigue of Lead‐Free Piezoelectric Materials

Electric Fatigue of Lead‐Free Piezoelectric Materials

Enhanced ferroelectric photovoltaic response of BiFeO3/BaTiO3 multilayered structure

Electrical Properties of BaTiO₃-Based Multilayer Ceramic Capacitors Sintered with Plasma-Treated Glass Powder

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Effect of microstructure on lifetime performance of barium titanate ceramics under DC electric field loading

Cited by 8 publications

References 22 publications

Electric Fatigue of Lead‐Free Piezoelectric Materials

Electric Fatigue of Lead‐Free Piezoelectric Materials

Enhanced ferroelectric photovoltaic response of BiFeO3/BaTiO3 multilayered structure

Electrical Properties of BaTiO3-Based Multilayer Ceramic Capacitors Sintered with Plasma-Treated Glass Powder

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Electrical Properties of BaTiO₃-Based Multilayer Ceramic Capacitors Sintered with Plasma-Treated Glass Powder