Crystal chemical characteristics and physical properties of ferrous minerals as the basis for the formation of functional materials

Shmakova, A.; Kanev, Bronislav; Gömze, A. László; Kotova, O. B.

doi:10.1088/1757-899x/175/1/012015

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…Gibbsite, boehmite, hematite, aluminous goethite and anatase were identified in both hematite-rich and goethite bauxites. The results of mineralcrystallochemical studies on Timan ferruginous bauxites were presented in [6][7][8]. The features of distributing Fe 2+ and Fe 3+ ions over structural positions in oxides and phyllosilicates were also discussed.…”

Section: Introductionmentioning

confidence: 99%

Mössbauer and X-ray Diffraction Spectroscopy of High-Iron Bauxites from Kazakhstan

Shokanov,

Vereshchak,

Manakova

et al. 2023

Materials

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The bauxite ores of Kazakhstan were analyzed using Mössbauer spectroscopy, X-ray diffraction and an X-ray fluorescence analysis. Experimental data on the structural–phase composition of bauxites were obtained, and the features of the iron-bearing minerals within them were revealed. The studied bauxites were high in iron. The magnetic part of bauxite was mainly represented by aluminohematite with a concentration of CAl = 3.34–5.73 at.%, alongside goethite in small amounts. The predominant phase in the bauxite samples was the alumina-bearing mineral gibbsite with a well-crystallized monoclinic lattice. The main siliceous mineral of bauxite is kaolinite, which showed distorted octahedral positions in a number of samples. Siderite amounts were found to vary in the range of 0–15 at.% in the present iron-bearing minerals. Ilmenite was also present in the bauxite of some deposits; anatase was found in all bauxites and was the final product of ilmenite decomposition in the weathering crust.

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Section: Introductionmentioning

confidence: 99%

Mössbauer and X-ray Diffraction Spectroscopy of High-Iron Bauxites from Kazakhstan

Shokanov,

Vereshchak,

Manakova

et al. 2023

Materials

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Effect of composition and heat treatment on porosity and microstructures of technical ceramics made from kaolin and IG-017 additive

Kurovics

Gömze

Ibrahim

et al. 2019

IOP Conf. Ser.: Mater. Sci. Eng.

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Based on conventional kaolinite and IG-017 bio-original additives of IGREX Ltd. the authors have developed new ceramic composite materials for different industrial purposes. In this work, different powder mixtures of kaolinite and IG-017 bio-original additive were milled and uniaxially pressed at different compaction pressures into cylindrical discs, after compaction, the discs were sintered in electric kiln under oxidation atmosphere and in oxygen-free atmosphere. Using the oxygen-free sintering process, new high porosity ceramic materials were created. Through the examination of the microstructure of the produced specimens the authors have found that the ceramic structure is reinforced with carbon nanofibers.

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Crystal chemical characteristics and physical properties of ferrous minerals as the basis for the formation of functional materials

Cited by 2 publications

References 2 publications

Mössbauer and X-ray Diffraction Spectroscopy of High-Iron Bauxites from Kazakhstan

Mössbauer and X-ray Diffraction Spectroscopy of High-Iron Bauxites from Kazakhstan

Effect of composition and heat treatment on porosity and microstructures of technical ceramics made from kaolin and IG-017 additive

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