Kinetics of crystallization in 13.2Li2O-67.6SiO2-14.49Al2O3-3.3TiO2-0.4BaO-0.97ZnO glass ceramic powder: Part I: A model-free vs. model-fitting approach

Savabieh, Hamidreza; Alizadeh, Parvin; Nayebi, Behzad; Clemens, Frank

doi:10.1016/j.ceramint.2019.01.214

Cited by 11 publications

(5 citation statements)

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“…These values indicated an increasing nucleation rate [33][34][35]. The n value for peak II was between 3 and 4 indicating a decreasing nucleation rate [33][34][35]. From these results, we can assign peak II to the metastable phase (calcium silicate), which presents a decreasing nucleation rate when evolving to a stable phase.…”

Section: Resultsmentioning

confidence: 99%

“…It can be seen that the Avrami indices for peaks I and III were higher than 4, for both methods used. These values indicated an increasing nucleation rate [33][34][35]. The n value for peak II was between 3 and 4 indicating a decreasing nucleation rate [33][34][35].…”

Section: Resultsmentioning

confidence: 99%

“…There are methods described in the literature to evaluate the crystal nucleation and growth process in the glass matrix. These methods are generally called kinetic models [17,18]. The kinetic process involves the crystallization of the glassy material, for which several model-fitting methods have been developed on the basis of phase change [19].…”

Section: Introductionmentioning

confidence: 99%

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Crystallization kinetics of glass prepared with foundry slag

et al. 2021

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Iron foundry slag and hydrated lime were used in glass preparation by the melt-quenching method. The glass obtained was heattreated using the thermal analysis technique. A crystallization kinetics study was carried out with glass powder samples using a nonisothermal method at five different heating rates by differential scanning calorimetry (DSC). Considering that few studies compare kinetic results obtained by different methods, in this work, the activation energy (E a ) of the crystallization process was obtained using the Kissinger and Augis-Bennett models for comparison purposes. The E a results showed negligible variation in comparing the methods used, nevertheless, linear fitting of crystallization peaks was slightly better by the Augis-Bennett than the Kissinger model. The Avrami index values showed an increasing nucleation rate for two stable phases and decreasing for the metastable phase present in the glass-ceramic. Avrami indexes obtained also indicated an interface-controlled particle growth, whose scanning electron microscopy images showed different morphologies of crystalline particles in the bulk of the glass matrix.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Crystallization kinetics of glass prepared with foundry slag

et al. 2021

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“…Savabieh et al . investigated and reported the crystallisation kinetics of LAS glass powder through non-isothermal experiments by model-free (Ozawa-Flynn-Wall, Kissinger-Akahira-Sunose and Friedman) in combination with model-fitting method (Kissinger, modified Kissinger by Ozawa, Augis-Bennett, modified Ozawa by Matusita and Avrami-Erofeev) [186]. He recommended the Avrami-Erofeev model for describing crystallisation behaviour of LAS glass and reported variation in local Avrami coefficient with respect to crystallisation temperature that has a great influence on the crystallisation mechanism [186].…”

Section: Low Thermal Expansion Glass Ceramicsmentioning

confidence: 99%

Lithium aluminosilicate (LAS) glass-ceramics: a review of recent progress

Venkateswaran

Sreemoolanadhan

Vaish

2021

International Materials Reviews

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The lithium aluminosilicate system (LAS) is being explored for almost seven decades due to its anomalous and attractive properties (especially low/negative thermal expansion and fast ion conduction) and its commercial significance in consumer as well as strategic sectors. This review introduces current commercial applications of LAS systems, necessary background science, structural features of different LAS crystal systems, including their polymorphs and solid-solutions, and the origin of unusual properties. Significant emphasis is provided on processing transparent, nanocrystalline, low thermal expansion glass-ceramic (LEGC), the role of chemical constituents and additives, the effect of heat-treatment, and microstructural evolution while processing LEGC. Detailed discussions are provided on the following areas: LAS matrix composites, chemical strengthening of glass and glass-ceramic, low temperature co-fired ceramics (LTCC) and associated joining technologies (hydrolysis catalysis bonding, anodic bonding, brazing, etc.) that would further extend the application portfolio of LAS system.

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“…Recently, some studies have focused on the crystallization kinetics of glasses. [10,11] Owing to the fast nucleation character DOI: 10.1002/crat.202200257 with small nuclei, many of these researches have considered the crystal growth.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Crystallization Kinetics of Na₂ZnP₂O₇ Glass Using XRD and DTA Analysis

Ramdani

Bourezg

Kharroubi

et al. 2023

Cryst. Res. Technol.

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In the present investigation, the crystallization kinetics of a glass with a molar composition 25Na 2 O-25ZnO-50P 2 O 5 (NZPO) is studied by means of a non-isothermal differential thermal analysis (DTA) and X-ray diffraction (XRD) techniques. XRD pattern of the as-synthesized glass indicates an amorphous glassy structure without additional crystalline phase. Moreover, the heat-treated glass sample shows the crystallization of the Na 2 ZnP 2 O 7 crystalline phase. The glass transition peak temperature increases with increasing heating rates and is ranged from 505.3 to 601.6 K. The crystallization shows the same behavior and the obtained values are ranged from 685.2 to 731.2 K. The activation energies for glass transition and crystallization are determined using different approaches and are in the range of 25.9-30.5 and 82.8-112.0 kJ mol −1 , respectively. The n and m kinetic parameters are each close to 3.0, which indicates bulk nucleation process with 3D growth of crystals.

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Kinetics of crystallization in 13.2Li2O-67.6SiO2-14.49Al2O3-3.3TiO2-0.4BaO-0.97ZnO glass ceramic powder: Part I: A model-free vs. model-fitting approach

Cited by 11 publications

References 46 publications

Crystallization kinetics of glass prepared with foundry slag

Crystallization kinetics of glass prepared with foundry slag

Lithium aluminosilicate (LAS) glass-ceramics: a review of recent progress

Investigation of Crystallization Kinetics of Na₂ZnP₂O₇ Glass Using XRD and DTA Analysis

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Kinetics of crystallization in 13.2Li2O-67.6SiO2-14.49Al2O3-3.3TiO2-0.4BaO-0.97ZnO glass ceramic powder: Part I: A model-free vs. model-fitting approach

Cited by 11 publications

References 46 publications

Crystallization kinetics of glass prepared with foundry slag

Crystallization kinetics of glass prepared with foundry slag

Lithium aluminosilicate (LAS) glass-ceramics: a review of recent progress

Investigation of Crystallization Kinetics of Na2ZnP2O7 Glass Using XRD and DTA Analysis

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Product

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Investigation of Crystallization Kinetics of Na₂ZnP₂O₇ Glass Using XRD and DTA Analysis