Preparation and investigation of porous aluminosilicate ceramic materials

Морозова, Л. В.; Лапшин, А. Е.; Дроздова, И. А.

doi:10.1134/s1087659608040111

Cited by 6 publications

(5 citation statements)

References 3 publications

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“…Porous ceramic materials are obtained by different methods, namely, by introduction of burnable organic or inorganic additives decomposing during sintering of clay [10,11]. Depending on the type, content, and geometric shape of introduced additives, it is possible to obtain porous ceramics of different type, up to foamed ceramics [12].…”

Section: Introductionmentioning

confidence: 99%

“…[5][6][7][8][9] Porous ceramic materials are obtained by different methods, namely, by introduction of burnable organic or inorganic additives decomposing during sintering of clay. 10,11 Depending on the type, content, and geometric shape of introduced additives, it is possible to obtain porous ceramics of different type, up to foamed ceramics. 12 Note that the response of highly porous permeable materials to different types of external action (mechanical, chemical, and high-temperature) has been insufficiently studied because, in this case, the surface of pores and properties of interpore ligaments plays a significant role.…”

Section: Introductionmentioning

confidence: 99%

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Physicochemical processes in the zone of local laser heating of porous aluminosilicate ceramics

Aguilar

Власова

Bernal

et al. 2021

Int J Ceramic Engine & Sci

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The performed investigations have shown that the basis of the local laser heating/"drilling" of composite coarse-pored ceramics consisting of aluminosilicates and a glass phase is the melting and ablation processes that lead to the formation of a hole. The interaction of the components of the composite in the zone of high-temperature heating is accompanied by the formation of melt of a glass phase of new composition. The motion of the metal to the depth of a sample through pore channelsclusters of the main ceramic material depends on the viscosity of melt (i.e., on the radiation regime) and the cooling rate of the melt (i.e., the thermo physical properties of the ceramics and glass phase). The development of hydrodynamic pressure in the zone of laser heating leads not only to the ejection of a part of the melt from the channel, but also to the densification of the ceramics adjacent to the Accepted Article This article is protected by copyright. All rights reserved walls of the vitrified channel. These effects depend to a great extent on the ceramics/glass phase ratio and on the porosity of the initial ceramics.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Physicochemical processes in the zone of local laser heating of porous aluminosilicate ceramics

Aguilar

Власова

Bernal

et al. 2021

Int J Ceramic Engine & Sci

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“…The production of macroporous and microporous ceramic materials is of considerable practical interest, because they make it possible to design heat-insulating materials and membranes for filtration of liquids, gases, and as catalyst supports [3] [4] for high-temperature and chemical processes [5]. The asymmetric multi-layer structure has often been used for preparation of ceramic membranes [6].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Pure and Ag-TiO<sub>2</sub>-Modified Diatomaceous Aluminosilicate Ceramic Membranes for Water Remediation

Ajenifuja¹,

Ajao²,

Alayande³

et al. 2016

JWARP

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Mesoporous ceramic membranes were prepared from raw and modified diatomaceous earth aluminosilicate mineral precursors. The main modification component of the ceramic membranes was Ag-loaded TiO2 nanoparticles (STOX). Chemical and microstructural characterizations of the raw materials and the modified precursors were carried out using Fourier Transform Infrared (FTIR) Spectroscopy, Particle Induced X-ray Emission (PIXE-IBA), Energy Dispersive X-ray Spectroscopy (EDX) and Scanning Electron Microscopy (SEM). The precursors and membranes were prepared and subsequently subjected to a high temperature sintering treatment for physico-chemical modification and stability. Remediation functionalities of the ceramic membranes on water samples were studied using Atomic Absorption Spectrophotometry (AAS), Total Bacterial Count Enumeration; Total Dissolved Solids (TDS), pH, and Electroconductivity (EC). Remediation experiments showed reductions in the concentration of certain cations such as Mg 2+ , Mn 2+ , Cd 2+ , Ni 2+ and K + by the modified ceramic membrane samples, while increased concentrations were observed for Ca 2+ , Na + and Mg 2+. The antimicrobial microfiltration process showed 100% bacterial removal and 70% fungi removal in most of the samples. Membranes exhibited good flux output from 5.607 L/hr•m 2 (STOX-Z) to 39.245 L/hr•m 2 (ZEO-T) under a pressure of 0.0196 MPa.

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“…Oxide, aluminosilicate, and silicate materials hold much promise for the preparation of porous ceramic composites. Aluminosilicate ceramic materials occupy an important place in this series, because they exhibit corrosive and abrasive stabilities, mechanical strength, heat resistance, and chemical durability [1]. Ceramic membranes have a wide range of domestic, industrial, and scientific uses, the most common of which is used in separation processes.…”

Section: Introductionmentioning

confidence: 99%

“…Ceramic membranes are also more mechanically stable under high pressures. The production of microporous aluminosilicate ceramic materials is of considerable practical interest, because they make it possible to design heat-insulating materials, membranes for filtration of liquids and gases, and catalyst supports [2] for hightemperature and chemical processes [1]. The asymmetric multilayer structure has often been used for preparation of ceramic membranes [3].…”

Section: Introductionmentioning

confidence: 99%

Remediation of Polluted Water Using Natural Zeolitic Aluminosilicates/Lateritic Clay Ceramic Matrix Membrane

et al. 2012

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Microporous ceramic matrix membranes were prepared with complementary proportions of locally available zeolitic aluminosilicate materials and other abundant lateritic clay minerals. The membranes cast as circular disks (22.78 mm diameter and 2.11 mm thickness) were treated with silver nitrate solution to discourage microbial growth on their surface and then sintered at C for about 20 hours. Antimicrobial microfiltration process showed 87.24% to 100% bacterial rejection depending on the material combination ratio. Elemental characterization of the membrane materials was done using ion beam analysis (IBA) technique of particle induced X-ray emission (PIXE), while the physicochemical behaviour of the ceramic membranes was carried out through the analysis of the filtered water samples using atomic absorption spectroscopy (AAS), total dissolved solids (TDS), microbial, and pH analyses. Compositional characterization of raw materials showed comparatively low contents of impurities, such as Fe and Ca, in the raw materials, but with high SiO2/Al2O3 ratios for the raw material which is important for zeolitic material synthesis. Regularly porous microstructure of mean pore diameter of between 50 nm and 100 nm was observed from the analyzed images obtained from ZEISS Supra 40 scanning electron microscope.

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Preparation and investigation of porous aluminosilicate ceramic materials

Cited by 6 publications

References 3 publications

Physicochemical processes in the zone of local laser heating of porous aluminosilicate ceramics

Physicochemical processes in the zone of local laser heating of porous aluminosilicate ceramics

Synthesis and Characterization of Pure and Ag-TiO<sub>2</sub>-Modified Diatomaceous Aluminosilicate Ceramic Membranes for Water Remediation

Remediation of Polluted Water Using Natural Zeolitic Aluminosilicates/Lateritic Clay Ceramic Matrix Membrane

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Preparation and investigation of porous aluminosilicate ceramic materials

Cited by 6 publications

References 3 publications

Physicochemical processes in the zone of local laser heating of porous aluminosilicate ceramics

Physicochemical processes in the zone of local laser heating of porous aluminosilicate ceramics

Synthesis and Characterization of Pure and Ag-TiO&lt;sub&gt;2&lt;/sub&gt;-Modified Diatomaceous Aluminosilicate Ceramic Membranes for Water Remediation

Remediation of Polluted Water Using Natural Zeolitic Aluminosilicates/Lateritic Clay Ceramic Matrix Membrane

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Synthesis and Characterization of Pure and Ag-TiO<sub>2</sub>-Modified Diatomaceous Aluminosilicate Ceramic Membranes for Water Remediation