Abstract
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–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–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.
Highlights
The development of modern technology is impossible without the creation of new materials.The widespread use of metal nitrides is due to their physical and chemical properties, such as heat resistance, corrosion resistance, and wear resistance
The initiation of the combustion of chromium powder was carried out by applying a current to the molybdenum spiral, which resulted in the formation of a burning front that propagated along the the molybdenum spiral, which resulted in the formation of a burning front that propagated along the sample
= 63–80a stable μm when purged with pure nitrogen, it is necessary that the specific flow rate is size δ = 63–80 3μm when with pure nitrogen, it is necessary that the specific flow rate is
Summary
The development of modern technology is impossible without the creation of new materials. The widespread use of metal nitrides is due to their physical and chemical properties, such as heat resistance, corrosion resistance, and wear resistance. Metal nitrides are used as abrasive materials, and wear-resistant and decorative coatings. The most important possible areas of the practical application of metal nitrides are their use as master alloys to increase the heat resistance of metal materials, initial powders for nitride ceramics, and as master alloys to increase the cold resistance of steel. Obtaining metal nitrides and studying their properties is a critical task. The industry uses well-known methods of powder metallurgy to produce metal nitrides
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
