Effect of iron content on the sintering of ground basalt into ceramics

Дробот, Н. Ф.; Noskova, O. A.; Хорошилов, А.; Steblevskii, A. V.; Фомичев, С. В.; Кренев, В. А.

doi:10.1134/s0020168514030042

Cited by 10 publications

(4 citation statements)

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“…It must be emphasized that the weight loss in the range from 3.19 to 3.77 wt.% was also recorded during the sintering of the basalt originated from the Arkhangelsk region in Russia where the detected weight change variation was confirmed to be within 0.60 wt.% range [39]. Having this in mind, it can be concluded that the lower weight loss was recorded during the sintering in air of the andesite basalt originated from the deposit site "Donje Jarinje", which was used in this study, than during the sintering of the basalt from the deposit site located in the Arkhangelsk region, which was reported in the literature.…”

Section: Characterization Of Sintered Samplesmentioning

confidence: 87%

“…Moreover, previous research in this field showed that a higher silicon, sodium and potassium contents in the basalt composition led to an increase of the glassy phase content in the microstructure, which reduced the material density and increased its acid resistance [39].…”

Section: Characterization Of Sintered Samplesmentioning

confidence: 99%

“…Having this in mind, it can be concluded that the lower weight loss was recorded during the sintering in air of the andesite basalt originated from the deposit site "Donje Jarinje", which was used in this study, than during the sintering of the basalt from the deposit site located in the Arkhangelsk region, which was reported in the literature. Previously published results indicate that during the basalt heat treatment, the weight loss can be expected due to the hygroscopic moisture evaporation, the chemically bound water removal, burnout of the organic impurities, dissociation of the present carbonates and sulphides and removal of the gaseous inclusions [36,39]. Therefore, it can be presumed that the andesite basalt from the "Donje Jarinje" deposit site shows higher purity and can be considered as a high-quality raw material for the high-density ceramics production.…”

Section: Characterization Of Sintered Samplesmentioning

confidence: 99%

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High-density ceramics obtained by andesite basalt sintering

Pavkov

Bakić

Maksimović

et al. 2022

PAC

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In the present study, andesite basalt originated from the deposit site ?Donje Jarinje?, Serbia, was examined as a potential raw material for high-density ceramics production. The production of high-density ceramics included dry milling, homogenization, cold isostatic pressing and sintering in the air. To determine the optimal processing parameters the sintering was conducted at 1040, 1050, 1060, 1070 and 1080?C, and afterwards the sintering duration was varied from 30 to 240min at the optimal sintering temperature of 1060?C. Characterization of the starting and sintered materials included the estimation of particle size distribution, density, hardness and fracture toughness complemented with X-ray diffraction, optical light microscopy, scanning electron microscopy and energy dispersive spectroscopy analysis. Phase transformations did not occur during processing in the investigated temperature range from 1040 to 1080?C. The obtained research results showed that 99.5% of relative density and the highest hardness and fracture toughness values of 6.7GPa and 2.2MPa?m1/2, respectively, were achieved for the andesite basalt sintered at 1060?C for 60min in the air. The results of the present study confirmed that the sintered andesite basalt can be used as a high-density ceramic material for various industrial applications.

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Section: Characterization Of Sintered Samplesmentioning

confidence: 87%

Section: Characterization Of Sintered Samplesmentioning

confidence: 99%

Section: Characterization Of Sintered Samplesmentioning

confidence: 99%

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High-density ceramics obtained by andesite basalt sintering

Pavkov

Bakić

Maksimović

et al. 2022

PAC

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“…Drobot et al 23,24 evaluated the effect of iron content on the sintering behavior of basalt compositions. In the studies, ground basalt was divided, by magnetic separation, into magnetically enriched and magnetically deficient components.…”

Section: Introductionmentioning

confidence: 99%

Effect of iron on the microstructure of basalt glass‐ceramics obtained by the petrurgic method

Lima

Perottoni

Zorzi

et al. 2021

Int J Applied Ceramic Tech

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Basalt glasses may form glass‐ceramic materials upon a thermal treatment (TT) if the Fe2O3/FeO ratio is greater than 0.5. In this work, a Serra Geral Formation basalt was used to produce different glass‐ceramic materials by changing its chemical composition, removing Fe2O3 via magnetic separation and adding 20 wt% Fe2O3. Glass‐ceramics were prepared by melting at 1500°C, followed by a crystallization plateau at 950°C. This petrurgic TT yields dendritic structures upon surface crystallization. With the increase of the iron content, crystallization was more pronounced, as observed in thermal analysis results and optical/scanning electron microscopy. The microstructure analysis shows that these glass‐ceramics exhibit at least two different types of crystallization. On the surface, the predominant crystallization was dendritic, while in bulk, crystallization occurred in the form of randomly distributed submicrometric spheroid crystals.

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