Title :
The mechanism of nitride phases formation at burning of metal powders in air
Author :
Kwon, Y.S. ; Ilyin, Alexander P. ; Root, Liudmila O. ; Tikhonov, D.V. ; Zvjagintseva, E.S. ; Shinkevitch, E.V.
Author_Institution :
Univ. of Ulsan, Ulsan, South Korea
Abstract :
The research stages of nitrogen chemical accumulation during metal powders combustion in air, with the formation of independent crystal phases of nitrides are presented in the paper. The extraordinary characteristic of this phenomenon is connected with a contradiction: thermodynamic calculations show that nitrides are being oxidized by oxygen. It has been shown that the phenomenon is interdisciplinary: its manifestations are applicable in many spheres of science and technique. A probable mechanism is proposed regarding the formation of nitrides under high temperature conditions in the presence of air oxygen.
Keywords :
aluminium; combustion; oxidation; powder metallurgy; thermodynamics; titanium; zirconium; Al; Ti; Zr; air oxygen; burning; combustion; metal powders; nitride crystal phase formation; oxidation; thermodynamic calculations; Chemicals; Nitrogen; Rockets; air nitrogen; burning products; gaseous phase interaction; high-temperature burning; metal powder; nitride formation; oscillatory processes;
Conference_Titel :
Strategic Technology (IFOST), 2011 6th International Forum on
Conference_Location :
Harbin, Heilongjiang
Print_ISBN :
978-1-4577-0398-0
DOI :
10.1109/IFOST.2011.6020955
