High strength glass-ceramics sintered with coal gangue аs а raw material

Dang, Wei; He, H.-Y.

doi:10.2298/sos1903285w

Cited by 12 publications

(5 citation statements)

References 21 publications

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“…As MgO additive has been added to the raw material, silica content decreased and complete mullitization was achieved at this stage at high intensity Tkaczewska (2015). Wei & He (2019). 2) Effect of sintering temperature on the phase development in mullitecarbon ceramic composites with 10% MgO additives As presented in XRD result in Figure 7 and Figure 8, it was observed for sample Q that mullite, graphite and periclase were formed at high intensity while other minerals were observed at low intensity.…”

Section: Effect Of Sintering Temperature On the Phase Development In ...mentioning

confidence: 91%

Development of Mullite- Carbon Refractory Ceramic Composite From Locally Sourced Materials

Ibekwe,

Aramide

2023

Int. J. Eng. Tech. Mgmt. Res.

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In the pursuit of developing a mullite- carbon refractory ceramic composite with optimum physical and mechanical properties modified with additives, experimental studies were carried out using local materials from Nigeria's south-south and south-west regions. Kaolin clay was crushed to 2 mm and ball-milled into powder. Ground kaolin was homogeneously blended with graphite using a ball mill and sieved through a 300μm electric sieve. The homogeneous mix was combined with predetermined Magnesium Oxide proportions, compacted, and fired at 1300 °C, 1400 °C, and 1500 °C. Extensive tests followed, including X-ray diffraction (XRD) for phase analysis, ultra-high- resolution field emission scanning electron microscopy equipped with energy-dispersive spectroscopy (SEM-EDS) for microstructural morphology, and assessments of mechanical and physical properties. Findings indicated that additive inclusion spurred mullite phase development between 1300°C and 1500°C, enhancing their physico- mechanical properties. Among the samples, Sample R composed of 15% MgO, 65% kaolin, and 20% graphite, fired at 1500°C, displayed optimal physico-mechanical properties (95.8%) and favorable mullite formation (46.0%) was achieved.

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Section: Effect Of Sintering Temperature On the Phase Development In ...mentioning

confidence: 91%

Development of Mullite- Carbon Refractory Ceramic Composite From Locally Sourced Materials

Ibekwe,

Aramide

2023

Int. J. Eng. Tech. Mgmt. Res.

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“…Primary Mullite (PM) crystals defined as cuboidal crystals from clay agglomerate relicts [7,12,26]. Secondary Mullite (SM) characterised as elongated needle-shaped crystals from Primary Mullite crystals [27]. As mentioned before, the addition of alumina and zircon together with the spodumene increasing mullite crystals contributed to increase hardness, elastic modulus and strength [28].…”

Section: Microstructural Analysis (Sem)mentioning

confidence: 99%

Development of optical, microstructural and mechanical properties of porcelain stonewares

et al. 2021

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New production systems developed in recent years made it possible to improve different aesthetic appearance and large sizes for porcelain stonewares. In order to produce these tiles, optical and mechanical properties of the porcelain stonewares should be improved. Optical and mechanical properties also related with microstructure. In this study, spodumene, alumina and zircon were used to improve the microstructure of the porcelain stonewares and consequently their optical and mechanical properties. The wear resistance of porcelain stonewares is the one of the most important mechanical properties. In this study, a different test method was used because the existing wear test methods on the tiles were insufficient. The solid particle impingement method using alumina particles was used to determine wear resistance of the porcelain stoneware bodies.

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“…This transformation of coal gangue turns it into a material of glass-ceramics, equipped with excellent physical properties and promising applications. In the process of manufacturing glass-ceramics, Chen [4] used phosphorus slag and coal gangue as raw materials to achieve an efficient and cost-effective production process. In addition, he studied the effect of different types of phosphorus slag and coal gangue on the melting efficiency and crystal formation capability of glass-ceramics, and finally came up with the optimal ratio of phosphorus slag and coal gangue.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Preparation of Coal Gangue Magnetic Glass-Ceramics by Direct Sintering Method

Yang,

Luo,

Huang

2024

Journal of Safety Science and Engineering

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Coal gangue is the waste generated during coal mining and processing. This paper aims to efficiently utilize coal gangue as a resource and reduce environmental load. Using coal gangue as the main raw material and copper tailings as auxiliary materials, magnetic glass-ceramics is prepared by direct sintering method. We examine the effects of different raw material ratios, sintering temperatures, and holding times on the structure and properties of magnetic glass-ceramics. The results show that when the coal gangue content is MGS-60wt%, the sintering temperature is 1180 ℃, and the insulation time is 50 minutes, the water absorption rate of magnetic glass-ceramics is 0.0028%, the volume density is 1.269g/cm3, and the magnetization strength is 0.533Gs. As the sintering temperature gradually increases and the holding time increases, its volume density shows a decreasing trend. The magnetization strength of magnetic glass-ceramics belongs to the weak magnetic range, with the lowest magnetization strength of 0.1Gs.

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High strength glass-ceramics sintered with coal gangue аs а raw material

Cited by 12 publications

References 21 publications

Development of Mullite- Carbon Refractory Ceramic Composite From Locally Sourced Materials

Development of Mullite- Carbon Refractory Ceramic Composite From Locally Sourced Materials

Development of optical, microstructural and mechanical properties of porcelain stonewares

Experimental Study on Preparation of Coal Gangue Magnetic Glass-Ceramics by Direct Sintering Method

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