Advanced tools for unveiling nucleation in nanostructured glass-ceramics

Montazerian, Maziar; Mancini, Matthew; Mauro, John C.

doi:10.1080/10408436.2022.2066624

Cited by 9 publications

(11 citation statements)

References 134 publications

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“…Several techniques, including optical microscopy, small angle X-ray scattering, X-ray absorption spectroscopy, and transmission electron spectroscopy, among many others have been employed in revealing such clustering and the nucleating ability of ZrO 2 . 62 The thermodynamics of nucleation at a zirconia site is crucially relevant to its nucleating ability. Gibbs free energy of nucleus formation and the surface energy of the interfaces are what determine if nucleation is thermodynamically possible.…”

Section: Nucleation and Microstructural Effectsmentioning

confidence: 99%

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: Nucleation and Microstructural Effectsmentioning

confidence: 99%

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

Shearer,

Montazerian,

Deng

et al. 2024

Int J Ceramic Engine & Sci

Self Cite

View full text Add to dashboard Cite

show abstract

“…The combination of NMR strategy with computer simulations is generally applicable to various types of glass, including bioactive glasses, and may help resolve outstanding issues concerning the release of therapeutic ions and how nucleation and crystallization will influence it, finally providing a possibility for fine-tuning the degradation. 71,72 Other advanced characterization methods employed to better understand the crystalline development in bioactive glass-ceramics include transmission electron microscopy (TEM), 3D nanocomputed tomography (CT), and environmental scanning electron microscopy (ESEM). TEM allows for nanometer-scale resolution, providing direct insight into the nanostructuring of fine-grained glassceramics.…”

Section: Controlled Crystallizationmentioning

confidence: 99%

“…TEM allows for nanometer-scale resolution, providing direct insight into the nanostructuring of fine-grained glassceramics. 71 Nano-CT provides resolution down to 50 nm which can monitor early-stage microstructural developments in glass-ceramics. 73 Nano-CT has recently been employed in studying the Bioglass R 45S5 system to examine the structural development of the combeite crystalline phase as a function of heat treatment schedules.…”

Section: Controlled Crystallizationmentioning

confidence: 99%

“…The newly developed NMR strategy is exciting, as it has the potential to aid in glass‐ceramic development. The combination of NMR strategy with computer simulations is generally applicable to various types of glass, including bioactive glasses, and may help resolve outstanding issues concerning the release of therapeutic ions and how nucleation and crystallization will influence it, finally providing a possibility for fine‐tuning the degradation 71,72 …”

Section: Controlled Crystallizationmentioning

confidence: 99%

“…Other advanced characterization methods employed to better understand the crystalline development in bioactive glass‐ceramics include transmission electron microscopy (TEM), 3D nanocomputed tomography (CT), and environmental scanning electron microscopy (ESEM). TEM allows for nanometer‐scale resolution, providing direct insight into the nanostructuring of fine‐grained glass‐ceramics 71 . Nano‐CT provides resolution down to 50 nm which can monitor early‐stage microstructural developments in glass‐ceramics 73 .…”

Section: Controlled Crystallizationmentioning

confidence: 99%

See 2 more Smart Citations

Perspectives on the impact of crystallization in bioactive glasses and glass‐ceramics

Montazerian,

Shearer,

Mauro

2023

Int J Ceramic Engine & Sci

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Both unwanted and induced crystallization can impact bioactivity, physical and mechanical properties of bioactive glasses (BGs). Uncontrolled crystallization has negative consequences, rendering BGs unreliable. However, by manipulating the type, size, shape, and quantity of crystals in BGs, plenty of opportunities arise for controlling, for example, mechanical properties and degradability, leading to unique applications and improved performance. Understanding crystallization is a key step in developing bioactive glasses and glass‐ceramics (BGCs), and both fundamental and experimental research can aid in the design of BGCs for processing and biological function. In this perspective, we discuss the sources of crystallization and how controlled crystallization facilitates the functionalization of bioactive scaffolds, hybrids, coatings, composites, cements, and fibers.

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Understanding the bio-crystallization: An insight to therapeutic relevance

Pandey,

Pandey

2024

Biophysical Chemistry

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Advanced tools for unveiling nucleation in nanostructured glass-ceramics

Cited by 9 publications

References 134 publications

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

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

Perspectives on the impact of crystallization in bioactive glasses and glass‐ceramics

Understanding the bio-crystallization: An insight to therapeutic relevance

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