Dynamic combustion regimes of the Ti-(Ti+0.5C) layered system in a concurrent nitrogen flow

Abstract

The filtration combustion of a layered porous fill consisting of alternating layers of a mixture of Ti + 0.5C a titanium powder with forced concurrent filtration of nitrogen was studied for the first time. The gas flow through the sample was provided by a vacuum pump attached to the lower end of the fill. The presence of the concurrent gas flow radically changes the character of propagation of the combustion front and the structure and composition of the products obtained. The layers consisting of carbonitride and titanium nitride make a single unit. The experiments provided scientific bases for the production of new laminated and composite ceramic materials by dynamic filtration combustion.

Process of Obtaining Chromium Nitride in the Combustion Mode under Conditions of Co-Flow Filtration

“…This type of combustion is theoretically described in sufficient detail [12][13][14][15][16][17], but at the same time, it has been little studied experimentally [18][19][20]. Most of these works deal with the study of combustion of a mixture of titanium and carbon powders in a co-flow of nitrogen and/or argon.…”