1. Nanoporous high-temperature filters based on Ti–Al ceramic SHS materials
- Author
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R. D. Kapustin, A. O. Kirillov, and Valerii Ivanovich Uvarov
- Subjects
010302 applied physics ,Nanostructure ,Materials science ,Nanoporous ,Process Chemistry and Technology ,Ultrafiltration ,02 engineering and technology ,021001 nanoscience & nanotechnology ,Microstructure ,01 natural sciences ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,law.invention ,Membrane ,Chemical engineering ,law ,visual_art ,0103 physical sciences ,Materials Chemistry ,Ceramics and Composites ,visual_art.visual_art_medium ,Ceramic ,0210 nano-technology ,Porosity ,Filtration - Abstract
The research is devoted to the development of scientific bases for creating a technology for manufacturing heat-resistant membranes based on a highly porous ceramic material with nanoscale pores (nanoporous), which allows increasing the efficiency of high-temperature purification of liquids from submicron dispersed contaminants by tangential filtration. Membranes based on a mixture of Ti and Al powders (40% by 60% mass ratio) were synthesized in one stage using the SHS method in the thermal explosion mode and used as filter elements in the ultrafiltration unit. Using X-ray and SEM methods, it was found that the synthesized material consists of the main phases TiAl3 and Al2O3. Analysis of the microstructure showed that the resulting ceramic material has a multilevel highly developed web-like nanostructure that forms an open porosity of the membrane, which provides the possibility of ultrafiltration.
- Published
- 2020
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