Enhanced dielectric performance of BaxSr(1-x)TiO3 films prepared by the direct current micro-arc oxidation in the presence of ethylenediamine tetraacetic acid

Wang, Min; Zuo, Xi; Li, Wenfang; Cao, Genghua; An, Xiang

doi:10.1016/j.tsf.2019.137579

Cited by 4 publications

(5 citation statements)

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“…It is well known that the formation of MAO films is dependent on the discharge of micro sparks in a variety of locations throughout the sample's surface [27]. According to references [19,28], the following reactions were involved during the MAO deposition of BST films on Ti substrates …”

Section: Resultsmentioning

confidence: 99%

“…It should also be highlighted that the thermal gradient/stress arising from the quick solidification of the molten oxide during the operation caused cracks in the BST thin films [32]. In a previous study [19], we simulated an equivalent circuit model for the formation of BST films on Ti substrates, as shown in Figure 6, which is made up of the following components: (i) a Ti substrate resistance ( R 1 ), (ii) a BST film resistance ( R ), a capacitor ( C ) in parallel with it and (iii) an electrolyte resistance ( R 2 ). As a result, the electrolyte and the BST film can be considered as two loads in series for the Ti MAO system.…”

Section: Resultsmentioning

confidence: 99%

“…The selected area electron diffraction pattern of BST thin film is shown in the inset of Figure [27]. According to references [19,28], the following reactions were involved during the MAO deposition of BST films on Ti substrates…”

Section: Transmission Electron Microscope Analysismentioning

confidence: 99%

“…According to our previous research, micro-arc oxidation (MAO) technology is a potential technology with low cost and high efficiency for the preparation of large area, high-quality BST membranes [19,20]. In situ MAO, a promising technique, can grow ceramic film directly on valve metals, such as aluminium, magnesium and titanium.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Ba²⁺/Sr²⁺ ratio on the microstructure, dielectric and ferroelectric properties of Ba_xSr_(1−x)TiO₃ films prepared by micro-arc oxidation

Wang

Zuo

et al. 2021

Surface Engineering

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Ba x Sr (1-x) TiO 3 (BST) thin films are in situ deposited on a Ti matrix through the micro-arc oxidation technique, using a mixed aqueous solution of Ba(OH) 2 •8H 2 O, Sr(OH) 2 •8H 2 O and 0.05 M EDTA as the electrolyte. The influence of the Ba 2+ /Sr 2+ ratio on the phase composition, microstructure and properties of the BST thin films is investigated. Ba 0.6 Sr 0.4 TiO 3 , Ba 0.5 Sr 0.5 TiO 3 , and Ba 0.4 Sr 0.6 TiO 3 thin films have a cubic phase, while Ba 0.8 Sr 0.2 TiO 3 and Ba 0.7 Sr 0.3 TiO 3 thin films have a tetragonal phase. When the concentration of Ba 2+ in the electrolyte surpasses that of Sr 2+ , the width of micro-arc holes and the surface roughness of the film grow as the Ba 2+ concentration rises. Furthermore, the dielectric and ferroelectric properties of BST films are favorably connected with the surface morphology. When the Ba 2+ concentration is 0.06 M, the film has the best compactness and smoothness. In addition, the highest capacitance and lowest dielectric loss are achieved.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Transmission Electron Microscope Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of Ba²⁺/Sr²⁺ ratio on the microstructure, dielectric and ferroelectric properties of Ba_xSr_(1−x)TiO₃ films prepared by micro-arc oxidation

Wang

Zuo

et al. 2021

Surface Engineering

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“…This process depends on factors such as the type of raw materials used, preparation conditions, and high voltage as the source for the electric field. 3 These materials are active elements in various piezoelectric devices, performing functions like sensing and actuation. 4 The output-versus-input graph enters a hysteresis loop when the input parameter is cycled.…”

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confidence: 99%

Impact of High Heat Treatment on Ferroelectric Materials Properties: Ba_1−xSr_xTiO₃ as a Model

Gatea,

Abbas,

Shaghnab

2023

ECS J. Solid State Sci. Technol.

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Ferroelectric materials differ from other dielectrics because their polarization stays after removing the external field. Hysteresis loops describe a wide range of behavior in engineering, chemistry, and physics disciplines. Sol-gel has prepared barium strontium titanate (Ba0.7Sr0.3TiO3; BST) nanocrystalline ceramics. Ba1-xSrxTiO3 crystal size increased as the sintering temperatures elevated from 900 °C to 1200 °C. The XRD patterns of Ba0.7Sr0.3TiO3 exhibited a tetragonal phase. (FESEM) used to measure the average particle size. The relationships between crystal size, dielectric and ferroelectric properties were investigated, showing better dielectric and piezoelectric parameters with increasing crystal and particle size. The increasing particle size also slightly shifted the curie transition temperature towards higher temperatures. The coercive field of Ba0.7Sr0.3TiO3 goes down as the crystal size increases, but the remnant and spontaneous polarization get better. This material is advantageous for applications in tunable capacitor devices.

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Analysis of Ferroelectric Thin Film BaZr_0.6Ti_0.4O₃with Annealing Temperature Increase Variations Using x-ray Diffraction

Dewi

Hamzah

Zulkarnain

et al. 2020

J. Phys.: Conf. Ser.

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Ferroelectric is a dielectric material which has spontaneous polarization and has the ability to change its internal polarization using a suitable electric field. The aim of this research is to decrease the FWHM value and increase the crystal size so that the dielectric constant increases for capacitor applications. Thin film ferroelectric material of Barium Zirconium Titanate (BZT) with the composition BaZr0.6Ti0.4O3 was prepared using the sol-gel method. The substrate used was FTO glass which has been treated etching and coated with BZT and in annealing at 800° C with annealing temperature increase of 5°C and 10°C. Samples were characterized using XRD with an angle interval of 2θ between 20° to 60°. The results of XRD characterization show that there were peaks indicating that there was a crystal structure. The resulting crystal structure was in a plane 100 at an angle of 2θ = 22.55°, a plane 110 at an angle of 2θ = 32.00°, a plane 111 at an angle of 2θ = 38.54°, and a plane 200 at an angle of 2θ = 47.64°. The resulting structure in this study was tetragonal where a = b = 3.955 and c = 4.266. The rate at which temperature rose had an effect on the peak of X-Ray diffraction. The FWHM value for 5°C was less than 10°C. This implies a greater density when annealing at 5°C. The crystal size values obtained with an increase in temperature of 5°C and 10°C in the 100 plane were 3.22 and 2.954, respectively. The crystal size was inversely proportional to the FWHM value where the small speed of the annealing temperature increase caused the crystal size to enlarge.

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Enhanced dielectric performance of BaxSr(1-x)TiO3 films prepared by the direct current micro-arc oxidation in the presence of ethylenediamine tetraacetic acid

Cited by 4 publications

References 53 publications

Effects of Ba²⁺/Sr²⁺ ratio on the microstructure, dielectric and ferroelectric properties of Ba_xSr_(1−x)TiO₃ films prepared by micro-arc oxidation

Effects of Ba²⁺/Sr²⁺ ratio on the microstructure, dielectric and ferroelectric properties of Ba_xSr_(1−x)TiO₃ films prepared by micro-arc oxidation

Impact of High Heat Treatment on Ferroelectric Materials Properties: Ba_1−xSr_xTiO₃ as a Model

Analysis of Ferroelectric Thin Film BaZr_0.6Ti_0.4O₃with Annealing Temperature Increase Variations Using x-ray Diffraction

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Enhanced dielectric performance of BaxSr(1-x)TiO3 films prepared by the direct current micro-arc oxidation in the presence of ethylenediamine tetraacetic acid

Cited by 4 publications

References 53 publications

Effects of Ba2+/Sr2+ ratio on the microstructure, dielectric and ferroelectric properties of BaxSr(1−x)TiO3 films prepared by micro-arc oxidation

Effects of Ba2+/Sr2+ ratio on the microstructure, dielectric and ferroelectric properties of BaxSr(1−x)TiO3 films prepared by micro-arc oxidation

Impact of High Heat Treatment on Ferroelectric Materials Properties: Ba1−xSrxTiO3 as a Model

Analysis of Ferroelectric Thin Film BaZr0.6Ti0.4O3with Annealing Temperature Increase Variations Using x-ray Diffraction

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Product

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Effects of Ba²⁺/Sr²⁺ ratio on the microstructure, dielectric and ferroelectric properties of Ba_xSr_(1−x)TiO₃ films prepared by micro-arc oxidation

Effects of Ba²⁺/Sr²⁺ ratio on the microstructure, dielectric and ferroelectric properties of Ba_xSr_(1−x)TiO₃ films prepared by micro-arc oxidation

Impact of High Heat Treatment on Ferroelectric Materials Properties: Ba_1−xSr_xTiO₃ as a Model

Analysis of Ferroelectric Thin Film BaZr_0.6Ti_0.4O₃with Annealing Temperature Increase Variations Using x-ray Diffraction