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

Volume

1

fYear

2011

fDate

22-24 Aug. 2011

Firstpage

20

Lastpage

23

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Strategic Technology (IFOST), 2011 6th International Forum on

Conference_Location

Harbin, Heilongjiang

Print_ISBN

978-1-4577-0398-0

Type

conf

DOI

10.1109/IFOST.2011.6020955

Filename

6020955