Crystallization and microwave dielectric properties of novel CaO-Al2O3-B2O3 glass-ceramics with different Al2O3 content

Cui, Haonan; Wang, Hua; Zheng, Yanfang; Wang, Yuchen; Li, Enzhu

doi:10.1016/j.jeurceramsoc.2023.07.077

Cited by 4 publications

(1 citation statement)

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“…When a higher amount of Al 2 O 3 is added, partial Al 3+ exists as [ AlO 5 ] or [ AlO 6 ] and as a positive ion outside the silica backbone, which increases the crystallinity, decreases the viscosity, and weakens the structural strength of the glass [8,9]. Many researchers have reported on the influence of Al 2 O 3 on the structure and properties of glass ceramics based on solid waste [10][11][12][13][14][15][16], indicating that the addition of an amount of Al 2 O 3 has a significant impact on the structure and properties of glass ceramics. However, little research about the crystallization behavior of glass ceramics prepared based on LFFS influenced by the addition of Al 2 O 3 has been reported.…”

Section: Introductionmentioning

confidence: 99%

Effect of Al2O3 on Crystallization, Microstructure, and Properties of Glass Ceramics Based on Lead Fuming Furnace-Slag

Zhang,

Xie,

Wang

et al. 2024

Metals

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In the paper, glass ceramics used as architectural materials were prepared based on lead fuming furnace-slag (LFFS) by a synergistic sinter-crystallization method. The effects of Al2O3 addition on the crystallization phase, crystallization kinetics, and mechanical performance of glass ceramics were investigated. The results showed that the phases of the glass ceramics prepared were composed of gehlenite and wollastonite, and crystallization kinetics analysis showed that bulk crystallization dominated the overall crystallization process in the Al2O3 content range from 2% to 8%. The glass transition temperature and the crystallization peak temperature of the glass ceramics generally increased with the increase in the Al2O3 content. Additionally, the crystalline morphology gradually developed from sheet-like to spherical, while the number of pores increased and the bulk density gradually decreased. When the Al2O3 content was 2%, the bending strength of glass ceramics reached its maximum, 75.1 MPa, corresponding to a bulk density of 2.24 g·cm−3. Owing to the high strength and relatively low bulk density, the sintered glass ceramics appear promising for potential applications in lightweight construction tiles.

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