科技报告详细信息
Expansion into vacuum of a shocked tungsten carbide-epoxy mixture. | |
Reinhart, William Dodd ; Thornhill, Tom Finley, III ; Vogler, Tracy John ; Alexander, C. Scott | |
关键词: BEHAVIOR; DATA; EVAPORATION; EXPANSION; MATERIALS; MIXTURES; PARTICLES; PHYSICS; TUNGSTEN; TUNGSTEN CARBIDES; VELOCITY; WELLS; X-RAY RADIOGRAPHY Materials-Research.; Epoxy compounds.; Tungsten-Analysis.; | |
DOI : 10.2172/983671 RP-ID : SAND2009-0859 PID : OSTI ID: 983671 Others : TRN: US201014%%1747 |
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学科分类:化学(综合) | |
美国|英语 | |
来源: SciTech Connect | |
【 摘 要 】
The behavior of a shocked tungsten carbide / epoxy mixture as it expands into a vacuum has been studied through a combination of experiments and simulations. X-ray radiography of the expanding material as well as the velocity measured for a stood-off witness late are used to understand the physics of the problem. The initial shock causes vaporization of the epoxy matrix, leading to a multi-phase flow situation as the epoxy expands rapidly at around 8 km/s followed by the WC particles moving around 3 km/s. There are also small amounts of WC moving at higher velocities, apparently due to jetting in the sample. These experiments provide important data about the multi-phase flow characteristics of this material.【 预 览 】
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