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Research and Development of High-performance Explosives
Published on: February 20, 2016
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含的新型能量材料:它们的潜力有多大? 关于爆炸性能的一项计算研究
Jing Yang1, Tiantian Bai2, Junxia Guan2
1Department of Chemistry, Tangshan Normal University, Tangshan, 063000, China. yjlzddove@gmail.com.
Journal of molecular modeling
|July 5, 2023
概括
研究人员设计了新的高能量密度材料 (HEDM),平衡性能和安全. 衍生品B1显示出优越的爆炸性能和稳定性,为先进的材料设计铺平了道路.
科学领域:
- 材料科学 材料科学 材料科学
- 计算化学的计算化学
- 能量材料 能量材料
背景情况:
- 高能量密度材料 (HEDM) 对于先进的应用至关重要,因为它们的高爆炸性能.
- 在HEDM开发中的一个关键挑战是平衡出色的性能与降低的灵敏度,以实现更安全的处理和应用.
- 现有的研究重点是分子设计,以实现最佳的能量输出和稳定性.
研究的目的:
- 设计和评估具有增强的引爆性能和降低灵敏度的新型高能密度材料 (HEDM).
- 研究含和无替代剂对CHOFN和CHON骨架的引爆特性的影响.
- 通过理论计算来识别表现出优越性能特征的特定衍生品.
主要方法:
- 密度函数理论 (DFT) 的计算使用高斯式16在B3LYP/6-31+G(d,p) 级使用.
- 对39种设计的衍生物进行了分子结构,能量,密度和形成热量 (HOF) 的计算.
- 使用理论密度和HOF估计了爆炸特性 (速度和压力),通过C-J热力学爆炸理论进行分析.
主要成果:
- 替代品的引入,特别是含的组,在设计的HEDM中显著提高了爆炸性能.
- 衍生品B1表现出卓越的性能,密度为1.93 g/cm3,爆炸压力为58.89 GPa,爆炸速度为8.02 km/s.
- 衍生品B1也表现出良好的灵敏性特征,其特征高度 (H50) 为34.6厘米.
结论:
- 分子设计策略有效地产生了具有卓越爆炸性能和稳定的HEDM.
- 导数B1代表了下一代高能量密度材料的有希望的候选者.
- 这项研究强调了基于理论的理性设计在推进高能材料领域的有效性.
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