Crystallization behaviors and properties of Ti-bearing blast furnace slag-based glass ceramics with varying CaO/SiO2 mass ratio

Feng, Xin; Lai, Feifei; Li, Jiangling; Liu, Qingcai; Ren, Shan; Yang, Jian

doi:10.1007/s41779-022-00719-0

Cited by 4 publications

(3 citation statements)

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“…Moreover, the glass‐ceramics featured a Vickers hardness of 991.67 ± 17.07 MPa and a flexural strength of 89.81 ± 1.44 MPa. The glass‐ceramics prepared with 55% Ti‐bearing blast furnace slag and 45% waste glass content featured high flexural strength, which is about 3.5 times that of the glass‐ceramics prepared with 100% Ti‐bearing blast furnace slag 33 …”

Section: Resultsmentioning

confidence: 95%

“…The glass-ceramics prepared with 55% Ti-bearing blast furnace slag and 45% waste glass content featured high flexural strength, which is about 3.5 times that of the glass-ceramics prepared with 100% Ti-bearing blast furnace slag. 33 The performance of glass ceramics is usually evaluated by flexure strength, Vickers hardness, density, and chemical durability (acid resistance, alkali resistance). Table 5 summarizes the properties of glass ceramics prepared from different solid wastes.…”

Section: Effect Of Heat Treatment Temperaturesmentioning

confidence: 99%

“…In previous studies, 33,34 the influence of TiO 2 and CaO/SiO 2 on the crystallization behavior of slag-based glass-ceramics was investigated. It was found that the optimal performance of the prepared Ti-bearing slag-based glass-ceramics was achieved at a TiO 2 content of about 4 wt% and a CaO/SiO 2 ratio of 0.5.…”

Section: Introductionmentioning

confidence: 99%

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Preparation and properties of the glass‐ceramics from low Ti‐bearing blast furnace slag and waste glass

Wu,

Teng,

Feng

et al. 2023

Int J Applied Ceramic Tech

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Ti‐bearing blast furnace slag is a typical silicate material, which can be an important component for the preparation of silicate‐based glass‐ceramics. Quartz‐based waste glass is commonly used as an additive to adjust the basicity of slag‐based glass‐ceramics. In this study, the quartz‐based waste glasses were added to the Ti‐bearing blast furnace slag to prepare the mixed solid waste glass‐ceramics. The effects of waste glass content and heat treatment temperatures on the crystallization and performances of the prepared glass‐ceramics were investigated. The results showed that as the waste glass content increased, the crystallization ability of the glass was weakened. Fassaite and nepheline were identified as the dominant crystalline phases in the prepared glass‐ceramics and mainly featured a combination of both massive and dendritic forms. With increasing the heat treatment temperatures, the size of dendritic crystals first increased and then decreased. The optimal experimental conditions were identified as a waste glass content of 45%, a crystallization temperature of 900°C, and a nucleation temperature of 730°C. Under these conditions, the prepared glass‐ceramics exhibited good crystalline phase distribution and excellent mechanical properties, including a Vickers hardness of 991.67MPa and a flexural strength of 89.81MPa. All the prepared solid waste‐based glass‐ceramics exhibited excellent chemical durabilities.This article is protected by copyright. All rights reserved

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Section: Resultsmentioning

confidence: 95%

Section: Effect Of Heat Treatment Temperaturesmentioning

confidence: 99%