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Details van artikel 7 van 9 gevonden artikelen
| Titel: |
QUENCHING OF COMBUSTION WAVES IN HETEROGENEOUS REACTION SYSTEMS:TIME-RESOLVED THERMAL VISION STUDIES |
| Auteur: |
Rogachev, Alexander S. Mukasyan, Alexander S. Varma, Arvind |
| Verschenen in: |
Combustion science and technology |
| Paginering: | Jaargang 175 (2003) nr. 2 pagina's 357-372 |
| Jaar: |
2003-02 |
| Inhoud: |
Time-resolved (30 frames/s), high temperature (up to ∼2300 K) Thermal Video System (TVS) was utilized for detailed real-time investigations involving quenching of the combustion wave in Ni+Al and Ti+Si reaction powder systems. The investigated samples were pressed into wedge-shape cut of massive Cu block, and after reaction was initiated at its top wide end the combustion wave propagated downward to the apex of the wedge. As the reaction front traveled, specific heat losses increased and at some critical position, combustion extinguished. It was shown that while front velocity gradually decreases approaching extinction, maximum combustion temperature remains essentially constant. This feature was explained based on a micro-heterogeneous model of combustion in gasless sytems. Further, analysis of dynamic temperature maps confirmed that quenching is a powerful tool forthe investigation of reaction routes and microstructure evolution in rapid heterogeneous combustion waves. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 7 van 9 gevonden artikelen
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