Microstructure and dielectric properties of CCTO glass-ceramic prepared by the melt-quenching method

Aliabadi, Tahere Nazari; Alizadeh, Parvin

doi:10.1016/j.ceramint.2019.06.182

Cited by 13 publications

(5 citation statements)

References 37 publications

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“…At 1 GHz, the dielectric loss of CCTO was 0.62 but the dielectric loss of G0.1, G1 and G5 were 0.47, 0.42 and 0.15, respectively. Higher glass contents are effective in promoting liquid phase at low sintering temperatures and enhancing the densification of the ceramics, thus dielectric constant [12,13]. According to Huang et al [14], SiO2 glass was well known of its low dielectric loss (< 0.001).…”

Section: Resultsmentioning

confidence: 99%

Microstructural and Dielectric Responses of Calcium Copper Titanate Added Soda-Lime Glass for High Frequency Devices

Rahman

Ain

Mohamed

et al. 2020

MSF

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The microstructures and dielectric responses of calcium copper titanate (CCTO) ceramics with soda-lime glass addition was investigated. The addition of soda lime glass was varied from 0-5 wt.% by solid-state reaction. The dielectric properties of CCTO indicated that dielectric constant was increased while dielectric loss was decreased after glass addition. The SEM micrographs showed the grain size of CCTO was decreased while the grain boundaries area of CuO + glass were increased after the addition of soda-lime glass. Both XRD patterns of CCTO and CCTO-soda lime glass sintered samples showed the formation of CCTO phase with minor peaks of CuO phase, respectively. These results indicated that soda-lime glass addition gave a significant effect on the microstructural and dielectric responses of CCTO ceramics.

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Section: Resultsmentioning

confidence: 99%

Microstructural and Dielectric Responses of Calcium Copper Titanate Added Soda-Lime Glass for High Frequency Devices

Rahman

Ain

Mohamed

et al. 2020

MSF

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“…Many conventional methods, including solid-state reaction, sol-gel, sonochemical and self-propagating high-temperature synthesis, and co-precipitation approaches, have been used to produce calcium cotper titanium oxide [5,[17][18][19][20]. Aside from a few limitations that include inhomogeneity, additional processing, and the need for high temperatures, these approaches nonetheless provide many advantages.…”

Section: Microwave Synthesis Of Calcium Copper Titanium Oxide Powdermentioning

confidence: 99%

Modern Synthesis and Sintering Techniques of Calcium Copper Titanium Oxide (CaCu3Ti4O12) Ceramics and Its Current Trend in Prospective Applications: A Mini-Review

2022

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Calcium Copper Titanium Oxide (CaCu3Ti4O12/CCTO) has grasped massive attention for its colossal dielectric constant in high operating frequencies and wide temperature range. However, the synthesis and processing of CCTO directly influence the material’s properties, imparting the overall performance. Researchers have extensively probed into these downsides, but the need for a new and novel approach has been in high demand. Modern synthesis routes and advanced non-conventional sintering techniques have been employed to curb the drawbacks for better properties and performance. This review provides a short overview of the modern synthesis and sintering methods that utilize direct pulse current and electromagnetic waves to improve the material’s electrical, optical, and dielectric properties in the best ways possible. In addition, the current application of CCTO as a photocatalyst under visible light and CuO’s role in the efficient degradation of pollutants in replacement for other metal oxides has been reviewed. This research also provides a brief overview of using CCTO as a photoelectrode in zinc–air batteries (ZAB) to improve the Oxidation-reduction and evolution (ORR/OER) reactions.

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“…It offers a significant opportunity for the development of polymer‐ceramics flexible dielectric composites. At room temperature CCTO has high dielectric permittivity typically in the order of 10 4 to 10 5 and over the wide temperature range (from room temperature to 300°C) it remains constant 23–25 . In this temperature range, CCTO exhibits stability of phase transition.…”

Section: Introductionmentioning

confidence: 99%

“…At room temperature CCTO has high dielectric permittivity typically in the order of 10 4 to 10 5 and over the wide temperature range (from room temperature to 300 C) it remains constant. [23][24][25] In this temperature range, CCTO exhibits stability of phase transition. In addition, CCTO has a low dielectric loss of nearly 0.15 over a wide frequency range up to 1 MHz.…”

mentioning

confidence: 99%

Ultra‐stretchable thermoplastic elastomeric materials based on styrene–isoprene–styrene triblock copolymer: Influence of calcium copper titanate on mechanical and dielectric properties

Rana,

Banerjee,

Betal

et al. 2023

J of Applied Polymer Sci

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Conventional charge storage devices made of ceramic materials have limited deformability and configurability due to their extreme stiffness. The high demand for compliant dielectrics has led researchers to look beyond conventional ceramics, despite their very high dielectric properties. In this work, a mechanically robust, highly‐flexible and ultra‐stretchable thermoplastic elastomeric material with dielectric characteristics has been fabricated by introducing calcium copper titanate [CaCu3Ti4O12] (CCTO) dielectric material onto macromolecular chains of styrene–isoprene–styrene (SIS) triblock copolymer via a solution‐based polymer processing technique. CCTO powders have been synthesized using sol–gel technique. The resulting composite is ultra‐stretchable with strain at break of ~3200% and has high dielectric permittivity of ~10. High dielectric property is attributed to the well‐dispersed dielectric CCTO fillers within the SIS matrix, which provide sites for interfacial polarization and space charge accumulation. The influence of CCTO on dielectric properties has also been validated using the modified Cole–Cole model.

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Microstructure and dielectric properties of CCTO glass-ceramic prepared by the melt-quenching method

Cited by 13 publications

References 37 publications

Microstructural and Dielectric Responses of Calcium Copper Titanate Added Soda-Lime Glass for High Frequency Devices

Microstructural and Dielectric Responses of Calcium Copper Titanate Added Soda-Lime Glass for High Frequency Devices

Modern Synthesis and Sintering Techniques of Calcium Copper Titanium Oxide (CaCu3Ti4O12) Ceramics and Its Current Trend in Prospective Applications: A Mini-Review

Ultra‐stretchable thermoplastic elastomeric materials based on styrene–isoprene–styrene triblock copolymer: Influence of calcium copper titanate on mechanical and dielectric properties

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