Combustion modes in the titanium-nitrogen system at low nitrogen pressures
| Autor: | I. O. Khomenko, S. G. Vadchenko, Alexander S. Mukasyan |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Diffraction
Low nitrogen General Chemical Engineering Inorganic chemistry Analytical chemistry General Physics and Astronomy Energy Engineering and Power Technology chemistry.chemical_element General Chemistry Combustion Titanium nitride Nitrogen chemistry.chemical_compound Fuel Technology Planar chemistry Titanium Solid solution |
| Zdroj: | Combustion and Flame. 111:65-72 |
| ISSN: | 0010-2180 |
| DOI: | 10.1016/s0010-2180(97)00095-3 |
| Popis: | The macroscopic combustion regimes, as well as the dynamics of phase formation, for the titanium-nitrogen system at low nitrogen pressures (0.1 kPa < p < 50 kPa) have been studied. Several combustion modes, including planar surface (high-temperature), surface spot, and planar layer-by-layer (low-temperature) mode, have been observed. Also, a chaotic spot mode was found at pressures below 2 kPa for conditions of high heat loss. Using the time-resolved x-ray diffraction method previously developed by the authors, it was shown in situ that different mechanisms of phase formation correspond to these combustion modes. For the high-temperature mode, titanium nitride appeared in the combustion front as the initial product. However, only solid solutions of nitrogen in titanium were formed during the low-temperature mode. A complex sequence of phase formation was observed for spot combustion. |
| Databáze: | OpenAIRE |
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