The influence of various additions on a glass-ceramic matrix composition based on industrial waste

Rozenštrauha, Ineta; Bajāre, Diāna; Cimdiņš, Rūdolfs; Bērziņa, Līga; Bossert, J.; Boccaccını, Aldo R.

doi:10.1016/j.ceramint.2005.01.006

Cited by 27 publications

(14 citation statements)

References 7 publications

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“…The energy calculated by the Kissinger method of crystallization was 360 kJ/mol and the Abraham parameter 1.66, which depends on the load-step controlled diopside crystals [8][9][10][11].…”

Section: Resultsmentioning

confidence: 99%

Synthesis of Ceramics in Different Colors from Industrial Waste

Doynov¹,

Dimitrov²,

Kokkori

2013

International Journal of Ecology

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The synthesis of arsenic-free ceramics from industrial waste is studied. Samples of waste containing siliceous material passed the exploitation leap-guard layer shift reactor whose main oxide is -Al 2 O 3 and, with the addition of natural raw materials and pure oxide, arsenic-free ceramics were synthesized with thermal and electrical properties related to the main phase of spinel group minerals; solid solutions were also formed in the process of synthesis. Insulating properties were established by successive heating and cooling of the specimen for six cycles. Electrical insulating properties were established by the method of resistance to arcing. The relative density was determined by hydrostatic method and diffusion lines of molecules at the main phase were characterized by X-ray diffraction analysis. The experimental procedures followed in this study allowed mixing on a molecular level due to the small dimensions of the crystallite which in turn explains the relatively high density.

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“…The energy calculated by the Kissinger method of crystallization was 360 kJ/mol and the Abraham parameter 1.66, which depends on the load-step controlled diopside crystals [8][9][10][11].…”

Section: Resultsmentioning

confidence: 99%

Synthesis of Ceramics in Different Colors from Industrial Waste

Doynov¹,

Dimitrov²,

Kokkori

2013

International Journal of Ecology

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“…In recent years, coal combustion ash [4,5], blast furnace slag [6,7], fly ash and filter dusts from waste incinerators [8][9][10], mud from metal hydrometallurgy [11,12], different types of sludge [13,14] and other industrial wastes [15,16] have been used for the preparation of glass ceramics. Khater [17] has reported that glass ceramics based on 56.78 % blast furnace slag were prepared by mixing quartz sand, dolomite, limestone and clay as other batch constituents.…”

Section: Introductionmentioning

confidence: 99%

Utilization of Air Quenched Steel Slag in Decorative Ceramics with Higher Mechanical Properties

Shen¹,

Ge²,

Lv³

et al. 2017

Proceedings of the 3rd Annual International Conference on Advanced Material Engineering (AME 2017)

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Abstract. Air quenched steel slag is much more difficult to utilize than other kinds of steel slag. 50 % percent of air quenched steel slag was used to prepare brown decorative ceramics. Due to the broken (SiO4)n glass network, the optimum sintering temperature decreases with increasing Na2O and MgO, respectively. The major crystalline phase of the samples is diopside (CaMgSi2O6) with minor anorthite phase (CaAl2Si2O8). Due to remelted glass phase, the X-ray diffraction intensity of the samples decreases with increasing Na2O, while the intensity increases with increasing MgO which is beneficial to crystallization of the samples. The bending strength of the samples decreases with increasing Na2O (from 155.3+/-2.49 MPa to 143.1+/-2.01 MPa), while the strength increases with increasing MgO (from 147.4+/-3.44 MPa to 169.4+/-4.04 MPa). The Vickers hardness of the samples shows similar trends with the bending strength. The samples exhibit much better mechanical properties than marble, granite, tile and other similar ceramics reported, and present good chemical resistance. Therefore, The ceramics based on air quenched steel slag may have great potential for applications as building decorative materials, and it provides a promising way for the utilization of air quenched steel slag. IntroductionSteel slag is a kind of intractable industrial waste, which is produced as a byproduct from either the conversion of iron to steel in basic oxygen furnace, or the melting of scrap in electric arc furnace. The chemical composition of steel slag is highly variable depending on the raw materials and production process, and the utilization of steel slag is difficult [1,2]. According to different cooling methods, air cooled steel slag, water quenched steel slag, water sprayed steel slag, air quenched steel slag, etc. are obtained respectively during the cooling process of molten slag. Since air quenched steel slag is very hard, and much more difficult to be ground than air cooled, water quenched or water sprayed steel slag, the utilization of air quenched steel slag is more difficult [3]. So far, there have been no effective ways for largely utilization of air quenched steel slag.Air quenched steel slag contains calcium oxide, silicon dioxide, magnesium oxide and so on, which are the important component of glass ceramics. In recent years, coal combustion ash [4,5], blast furnace slag [6,7], fly ash and filter dusts from waste incinerators [8][9][10], mud from metal hydrometallurgy [11,12], different types of sludge [13,14] and other industrial wastes [15,16] have been used for the preparation of glass ceramics. Khater [17] has reported that glass ceramics based on 56.78 % blast furnace slag were prepared by mixing quartz sand, dolomite, limestone and clay as other batch constituents. The glass ceramics obtained from vitrified sewage sludge have been studied by Bernardo and Dal Maschio [18], and the sample features good mechanical properties and a

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“…In a recent study, Gázquez et al TiO 2 slurry, and it was found to be promising for use as insulation and as a cement additive. In recent years, there has been a growing interest in the use of industrial waste as the raw material for the manufacture of ceramic products, such as bricks and roof tiles 4,5 . Industrial waste, as such as welding waste 6 and flue waste 7 , are promising raw materials for the manufacture of ceramic bricks.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Incorporation of Waste Generated from Titanium Dioxide Manufacturing in Red Ceramics

Ribeiro

Figueiredo²,

Machado³

et al. 2015

Mat. Res.

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Rotary-vacuum-filter mud (RVFM) is waste generated during the manufacturing process of titanium dioxide. In this work, RVFM and ceramic bricks containing different ratios of this waste are investigated. The mud samples were characterized using thermal analysis (TG/DTG). The aim of the present work was to determine the effect of adding RVFM on the ceramic properties of clay, such as apparent porosity, water absorption, linear shrinkage and flexural strength, used to produce red ceramics (bricks and roofing tiles). Samples were dried out at 110°C and fired at 800°C, 950°C and 1100°C. The addition of RVFM tends to increase the apparent porosity and water absorption and to decrease the flexural strength of the ceramic specimens. Based on the results, ceramic specimens with 20% RVFM content that are burned at 800ºC can not be used as bricks, and ceramic specimens with 20% RVFM content that are fired at 800ºC and 950°C can not used as roofing tiles, according to Brazilian standards.

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The influence of various additions on a glass-ceramic matrix composition based on industrial waste

Cited by 27 publications

References 7 publications

Synthesis of Ceramics in Different Colors from Industrial Waste

Synthesis of Ceramics in Different Colors from Industrial Waste

Utilization of Air Quenched Steel Slag in Decorative Ceramics with Higher Mechanical Properties

Evaluation of the Incorporation of Waste Generated from Titanium Dioxide Manufacturing in Red Ceramics

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