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Updated: Jun 24, 2026

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Research and Development of High-performance Explosives
Published on: February 20, 2016
富含的异环化合物作为冲击不敏感爆炸物的反应减缓剂
M Riad Manaa1, Evan J Reed, Laurence E Fried
1Lawrence Livermore National Laboratory, Energetic Materials Center, P.O. Box 808, Livermore, California 94551, USA. manaa1@llnl.gov
Journal of the American Chemical Society
|March 28, 2009
概括
量子模拟显示,富含的团在受冲击的三氨酸三丁 (TATB) 中形成,抑制了进一步的反应. 这表明,富含碳的爆炸物在原子层面上存在一种新的分解机制.
科学领域:
- 计算化学计算化学
- 材料科学 材料科学 材料科学
- 化学物理 化学物理
背景情况:
- 三氨酸三酸 (TATB) 是一种不敏感的能量材料,以其稳定性而闻名.
- 了解能量材料在冲击条件下的分解机制对于安全性和性能预测至关重要.
- 之前对TATB冲击反应的研究缺乏关于早期化学转换的原子细节.
研究的目的:
- 通过使用基于量子的多尺度模拟来研究受冲击的TATB的初始化学反应和分解途径.
- 阐明控制震惊TATB中观察到的长反应区的原子化机制.
- 确定关键的中间物种及其在分解过程中的作用.
主要方法:
- 基于量子的多尺度模拟被用来在冲击压缩下建模TATB晶体.
- 模拟追踪了纳米秒时间尺度上的9公里/秒和10公里/秒的冲击速度的化学转变.
- 分析的重点是识别分子结构,反应中间体和分解产品.
主要成果:
- 在TATB.的冲击压缩过程中观察到高度的富含的异环团.
- 发现这些异环的形成抑制了TATB对和碳的进一步反应.
- 确定了一种涉及异环形成的新型分解机制,先于大规模碳集群的形成.
结论:
- 富含的异环的形成代表了受冲击的TATB.中重要的早期反应途径.
- 这一途径为在冲击下富含碳的爆炸性分解提供了新的机制理解.
- 这些发现为TATB.的冲击反应和长反应区域提供了基本的原子学见解.
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