Vibration-resistant porous permeable metal-ceramic SHS-materials based on oxides of alloy steels and ferrosilicium addition
| Autor: | Maksim Aleksandrovich Kolomeets, Alla Aleksandrovna Melbert, Alexander Vladimirovich Maetsky, Tatyana Vasilievna Novoselova, Nikolay Pavlovich Tubalov, Olga Vladimirovna Yakovleva |
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| Jazyk: | ruština |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Известия Томского политехнического университета: Инжиниринг георесурсов, Vol 328, Iss 6 (2017) |
| Druh dokumentu: | article |
| ISSN: | 2500-1019 2413-1830 |
| Popis: | Constantly growing interest in practical use of porous permeable ceramic-metal materials in mechanical engineering is caused by the need to manufacture devices for cleaning gaseous emissions into the atmosphere from harmful substances. Porous permeable materials obtained by using self-propagating high-temperature synthesis (SHS), discovered by academician A.G. Merzhanov and described by scientific schools of the Siberian Federal University (Krasnoyarsk), Novosibirsk State Technical University (Novosibirsk), Altai State Technical University (Barnaul) and others, have a number of advantages, such as: low energy consumption when obtaining, possibility of using wastes of engineering and metallurgy, production of filters with high physical-mechanical properties and functional properties. The filters obtained by SHS have sufficient mechanical strength in compression and flexural strength, toughness, corrosion resistance, but when they are used in energy and motor vehicles, they are susceptible to damage from vibration and shock. The aim of the study is to develop vibration-resistant porous permeable metal-ceramic materials based on alloy steel oxides, non-ferrous metal oxides, aluminum and ferrosilicon obtained by using the SHS technology by methods of selection of charge composition, control modes of technological process of production. The results. The basic components of the charge are Fe2O3 (oxide alloy steel) + Al2O3 (corundum) + Al. The selected model for obtaining materials on the basis of these reagents with addition of small amounts (5…20) % of CrO2 (or Ce2O3), Cr, Ni and minor additives (0,5…1,5) % of FeSi (ferrosilicon) allows obtaining vibration-proof material to filter exhaust gas in transport. The increase in the content by mass within the above limits of the components, involved in the synthesis (Fe2O3, Cr, Ni and FeSi), leads to the growth in elasticity modulus, which increases the rigidity of the resulting materials. |
| Databáze: | Directory of Open Access Journals |
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