Process of Obtaining Chromium Nitride in the Combustion Mode under Conditions of Co-Flow Filtration
| Autor: | Aidos Tolynbekov, Mansur Ziatdinov, Vladimir Romandin, A. S. Zhukov, Yuliya Ryzhikh, Nikolay Evseev |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Self-propagating high-temperature synthesis inverse combustion wave chemistry.chemical_element Bioengineering Nitride Combustion lcsh:Chemical technology 01 natural sciences law.invention Physics::Fluid Dynamics lcsh:Chemistry chemistry.chemical_compound Chromium law Physics::Plasma Physics 0103 physical sciences Physics::Atomic and Molecular Clusters Chemical Engineering (miscellaneous) filtration combustion lcsh:TP1-1185 Physics::Chemical Physics Chromium nitride Filtration Physics::Atmospheric and Oceanic Physics 010302 applied physics chromium nitride Argon Process Chemistry and Technology superadiabatic heating co-flow 010406 physical chemistry 0104 chemical sciences Volumetric flow rate self-propagating high-temperature synthesis nitrogen–argon mixture chemistry Chemical engineering lcsh:QD1-999 |
| Zdroj: | Processes, Vol 8, Iss 1056, p 1056 (2020) Processes Volume 8 Issue 9 |
| ISSN: | 2227-9717 |
| Popis: | In this work, the combustion process of chromium powder in the co-flow filtration mode was studied. The effect of nitrogen-containing gas flow rate on the nitridation of combustion products is shown. The effect of the amount of argon in the nitrogen&ndash argon mixture on the burning rate and the burning temperature of the chromium powder is shown. It was found that an increase in the percentage of argon in the nitrogen&ndash argon mixture can lead to the formation of an inverse combustion wave. The actual burning temperature is higher than adiabatic burning temperature in the co-flow filtration mode, thus the phenomenon of superadiabatic heating is observed. The phase composition of the obtained combustion products was studied. It was shown that the forced filtration mode allows for synthesizing non-stoichiometric Cr2N nitride. |
| Databáze: | OpenAIRE |
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