Preparation and characterization of CaO-Al 2 O 3 -SiO 2 (CAS) glass-ceramics

Ozabaci, M.; Aksan, M.A.; Кират, Г.; Kızılaslan, Olcay; Yakıncı, M. E.

doi:10.1016/j.jnoncrysol.2016.10.019

Cited by 27 publications

(7 citation statements)

References 17 publications

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“…For sample S1 to S3, the previous rise in bulk density is because that samples with more mineral wool waste have more Al2O3 than SiO2 content and differ more from the eutectic point in ternary diagram of CaO, Al2O3 and SiO2 system [29][30]. Consequently, S3 has the lowest softening temperature.…”

Section: Effect Of Mineral Wool Waste Contentmentioning

confidence: 99%

Utilization of mineral wool waste and waste glass for synthesis of foam glass at low temperature

Zheng

Zou

et al. 2019

Construction and Building Materials

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To reduce the energy consumed by building part, a new method of producing foam glass at low temperature was proposed in this study. Mineral wool waste and waste glass recycled from building construction and demolition (C&D) process were used as major raw materials. In the meanwhile, calcium carbonate (CaCO3), borax (Na2B4O7•10H2O) and sodium phosphate (Na3PO4•12H2O) were added as extra additives, which played the part of foamer, fluxing agent and foam stabilizer, respectively. The effects of different content of each additives and different sintering temperature on the properties of foam glass were investigated. Bulk density, cross-section view and microstructure of the specimens were showed. The experiment results showed that the optimal content of raw materials and additives was 40 wt.% mineral wool waste, 60 wt.% waste glass, 20 wt.% borax, 1-2 wt.% calcium carbonate and 2 wt.% sodium phosphate, and its optimal sintering temperature was 800℃. The specimen sintered at this optimal condition had the most uniform foam structure and low bulk density of 0.7 g/cm 3. Finally, 2 EnergyPlus TM was used to evaluate the benefit of applying this new foam glass on the reduction on space conditioning loads, especially in relatively colder zones.

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Section: Effect Of Mineral Wool Waste Contentmentioning

confidence: 99%

Utilization of mineral wool waste and waste glass for synthesis of foam glass at low temperature

Zheng

Zou

et al. 2019

Construction and Building Materials

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“…[18][19][20] In particular, adding nucleating agents to CAS glass such as TiO 2 and ZrO 2 , glass-ceramic can be manufactured in the temperature range of 850-900 • C; it is widely used as a low-temperature co-fired ceramic. 21,22 Garai et al 23 added TiO 2 and ZrO 2 as single and complex nucleating agents to SiO Na 2 O-K 2 O-based glass. The PG composition used in the experiment is a commonly used industrial frit composition designed based on CAS glass system.…”

Section: Introductionmentioning

confidence: 99%

“…In particular, adding nucleating agents to CAS glass such as TiO 2 and ZrO 2 , glass‐ceramic can be manufactured in the temperature range of 850–900°C; it is widely used as a low‐temperature co‐fired ceramic 21,22 . Garai et al 23 .…”

Section: Introductionmentioning

confidence: 99%

Effect of complex nucleating agents on crystallization behavior of CaO–Al₂O₃–SiO₂–ZnO–Na₂O–K₂O glass‐ceramics

Kim,

Kim

2024

Int J of Appl Glass Sci

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Single (TiO2) and complex (TiO2 and ZrO2) nucleating agents were added in CaO–Al2O3–SiO2–ZnO–Na2O–K2O‐based multicomponent glass to investigate its crystallization behavior and physical properties according to the types and amounts of nucleating agents. Nonisothermal analysis revealed crystallization behavior with an activation energy (E) of 165.176–518.985 kJ/mol and Avrami constant (n) of .73–2.12 with the complex nucleating agent. X‐ray diffraction was used to observe the titanite and zircon crystalline phases in glass when using complex nucleating agents, and the crystallinity was found to be 43%–55%. Scanning electron microscopy and energy‐dispersive x‐ray spectroscopy were used to observe the plate‐shaped titanite and column‐shaped zircon crystalline phase in the glass matrix, and the glossiness was found to be decreased owing to the crystallization of the glass. The glass‐ceramic showed a higher hardness and fracture toughness value of 6.45–6.7 GPa and 1.54–3.35 MPa∙m1/2 when using the complex nucleating agent rather than when using the single nucleating agent.

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“…They generally exhibit superior mechanical, thermal, optical properties and chemical stability compared to parent glass with the contribution of crystallization [2]. Due to these properties, glass-ceramics have become highly preferred materials in many technological areas such as electronic, biomedical, photonics, optic and aerospace industries, and their commercial used applications such as cookware and architectural components [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

An EBSD Study on Crystallization of CaO-MgO-Al2O3-SiO2 (CMAS) Glass

Başkut

Dolekcekic

Günkaya

et al. 2022

Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım Ve Teknoloji

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In this study, heat treatment was applied to the CMAS parent glass produced using brucite with calcite, kaolin, ulexite natural raw materials and commercial MgF2, considering the DTA measurements. The crystallization behaviour and the growth directions of the crystals were investigated. XRD and SEM investigations revealed that the anorthite crystals were formed during heat treatment, and glass ceramic was obtained in the CAS system by surface crystallization. According to EBSD measurements, the {100} faces of the anorthite crystals just below the surface have a relatively higher ratio of lying parallel to the surface than their edges ({110}) and corners ({111}). These crystals grew by orienting in the same direction to the inner region of the remaining glass. However, some crystals exhibited random orientation. The tendency of crystals' same planes to lie parallel to the surface was relatively less in the inner regions than those on the surface.

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Preparation and characterization of CaO-Al 2 O 3 -SiO 2 (CAS) glass-ceramics

Cited by 27 publications

References 17 publications

Utilization of mineral wool waste and waste glass for synthesis of foam glass at low temperature

Utilization of mineral wool waste and waste glass for synthesis of foam glass at low temperature

Effect of complex nucleating agents on crystallization behavior of CaO–Al₂O₃–SiO₂–ZnO–Na₂O–K₂O glass‐ceramics

An EBSD Study on Crystallization of CaO-MgO-Al2O3-SiO2 (CMAS) Glass

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Preparation and characterization of CaO-Al 2 O 3 -SiO 2 (CAS) glass-ceramics

Cited by 27 publications

References 17 publications

Utilization of mineral wool waste and waste glass for synthesis of foam glass at low temperature

Utilization of mineral wool waste and waste glass for synthesis of foam glass at low temperature

Effect of complex nucleating agents on crystallization behavior of CaO–Al2O3–SiO2–ZnO–Na2O–K2O glass‐ceramics

An EBSD Study on Crystallization of CaO-MgO-Al2O3-SiO2 (CMAS) Glass

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Effect of complex nucleating agents on crystallization behavior of CaO–Al₂O₃–SiO₂–ZnO–Na₂O–K₂O glass‐ceramics