Zirconia assisted crystallization of ferroelectric BaBi2Nb2O9 based glass-ceramics: Kinetics, optical and dielectrical properties

Chakrabarti, A.; Molla, Atiar Rahaman

doi:10.1016/j.jallcom.2020.156181

Cited by 16 publications

(3 citation statements)

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“…A study by Chakrabarti and Molla (2020) used DSC to describe the effect of ZrO 2 -addition to K 2 O-BaO-Bi 2 O 3 -Nb 2 O 5 -CeO 2 -ZrO 2 glass-ceramics. 76 Zirconia was shown to assist the crystallization of a BaBi 2 Nb 2 O 9 phase for ferroelectric applications. Through nonisothermal DSC characterization, the crystallization kinetics were obtained.…”

Section: 𝐼 = 𝑛𝑣 Expmentioning

confidence: 99%

“…The first assumption assumes that there is exists a fixed amount of conversion at the crystallization peak temperature such that the rate of reaction is maximum. The second assumption is that the influence of nuclei growth is independent 76 of the heating rate. The Avrami index (n) was calculated, providing insight into the nucleation mechanism of each glass system.…”

Section: 𝐼 = 𝑛𝑣 Expmentioning

confidence: 99%

“…(A) diagram of Kissinger model, (B) diagram of Augis–Bennett model, (C) deviation of Avrami index with change in ZrO 2 concentration, and (D) Freidmann activation energy versus glass crystallization. Figure reproduced from Chakrabarti and Molla (2020) with permission from Ref 76 …”

Section: Nucleation and Microstructural Effectsmentioning

confidence: 99%

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Zirconia‐containing glass‐ceramics: From nucleating agent to primary crystalline phase

Shearer,

Montazerian,

Deng

et al. 2024

Int J Ceramic Engine & Sci

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This article reviews promising studies on the design, manufacturing, microstructure, properties, and applications of glass‐ceramics containing ZrO2 and relevant glass‐ceramic matrix composites. After the addition of ZrO2 to a glass‐ceramic composition, it can persist in the residual glassy phase, facilitate nucleation, and/or precipitate as ZrO2 or another zirconate crystalline phase. Also, ZrO2‐reinforced or ZrO2‐toughened glass‐ceramics can be designed as composites. In this article, the term “ZrO2‐containing glass‐ceramics” encompasses all these scenarios in which ZrO2 is present. Such glass‐ceramics offer a wide range of applications in modern industries, including but not limited to architecture, optics, dentistry, medicine, and energy. Since S. Donald Stookey's discovery of glass‐ceramics in the early 1950s, the most important scientific efforts reported in the literature are reviewed. ZrO2 is commonly added to glass‐ceramics to promote nucleation. As a result, the role of ZrO2 in structural modification of residual glass and stimulating the nucleation in glass‐ceramic is first discussed. ZrO2 can also be designed into the main crystalline phase of glass‐ceramics, contributing achieving super high fracture toughness above 4 MPa·m0.5. Experimental and computational studies are reviewed in detail to elucidate how the transformation toughening and other mechanisms help to achieve such high values of fracture toughness. Sintered and glass‐ceramic matrix composites also show promise, where ZrO2 contributes to improved stability and mechanical properties. Finally, we hope this article will provoke interest in glass‐ceramic materials in both the scientific and industrial communities so that their tremendous technological potential in developing, for example, tough, thermally stable, transparent, and biologically compatible materials can be realized more widely.

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Section: 𝐼 = 𝑛𝑣 Expmentioning

confidence: 99%

Section: 𝐼 = 𝑛𝑣 Expmentioning

confidence: 99%