Combustion velocities and propagation mechanisms of metastable interstitial composites
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- B. S. Bockmon
- Texas Tech University Department of Mechanical Engineering, , Lubbock, Texas, 79409
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- M. L. Pantoya
- Texas Tech University Department of Mechanical Engineering, , Lubbock, Texas, 79409
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- S. F. Son
- Los Alamos National Laboratory , Los Alamos, New Mexico, 87545
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- B. W. Asay
- Los Alamos National Laboratory , Los Alamos, New Mexico, 87545
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- J. T. Mang
- Los Alamos National Laboratory , Los Alamos, New Mexico, 87545
書誌事項
- 公開日
- 2005-09-15
- DOI
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- 10.1063/1.2058175
- 公開者
- AIP Publishing
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説明
<jats:p>Combustion velocities were experimentally determined for nanocomposite thermite powders composed of aluminum (Al) fuel and molybdenum trioxide (MoO3) oxidizer under well-confined conditions. Pressures were also measured to provide detailed information about the reaction mechanism. Samples of three different fuel particle sizes (44, 80, and 121nm) were analyzed to determine the influence of particle size on combustion velocity. Bulk powder density was varied from approximately 5% to 10% of the theoretical maximum density (TMD). The combustion velocities ranged from approximately 600 to 1000m∕s. Results indicate that combustion velocities increase with decreasing particle size. Pressure measurements indicate that strong convective mechanisms are integral in flame propagation.</jats:p>
収録刊行物
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- Journal of Applied Physics
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Journal of Applied Physics 98 (6), 064903-, 2005-09-15
AIP Publishing