爆轰反应环境中铝粉燃烧行为及反应程度表征
结题报告
批准号:
21975024
项目类别:
面上项目
资助金额:
60.0 万元
负责人:
任慧
依托单位:
学科分类:
含能材料化学
结题年份:
2023
批准年份:
2019
项目状态:
已结题
项目参与者:
任慧
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中文摘要
铝粉是火炸药广泛使用的固相燃料,然而关于铝粉在炸药爆轰区的燃烧行为一直存在很大争议。课题整合现有高端仪器,构筑铝粉在极端热力学环境中快速反应的在线观测系统,创建铝粉超快反应程度表征测量方法。用爆炸箔和激光飞片起爆产生高温高压场,综合超高速数字影像和时间高分辨率光谱技术,获得多物理场耦合下铝粉燃烧反应多维数据。求解铝粉在高温高压激励下的动力学方程,获得铝粉反应延滞期、相变形态、反应路径以及释能方式等与颗粒尺度、热力学状态参数之间的相互关系,在微细观尺度揭示铝颗粒于爆轰环境的燃烧机理。在此基础上,探寻增强铝粉反应活性与反应度的技术途径。利用实时观测系统,开展原位改性铝粉的反应测量,剖析不同包覆方案、复合结构、活性铝含量与能量释放之间的关联性。与工程应用主体-微米铝粉进行多视角比对,阐释铝粉超快反应动力学的科学疑难,突破含铝炸药能量利用率提升的技术瓶颈,推动含铝炸药从被动使用向主动调控的变革。
英文摘要
Aluminum is one of the wildly used solid fuels in high energy composite explosives, however, it has never been settled about the combustion behavior of aluminum in the detonation zone of explosives. Based on the domestic research status, an online detection system has been developed to investigate the fast reaction of aluminum powders under an extremely complex thermal and dynamic environment with the existing equipment, setting up a method to characterize and measure the fast reaction degree of aluminum. By creating a high-temperature and high-pressure via two initiation models and integrating the ultra-high speed digital image techniques and spectrum test technology with time high resolution, the multi-data of the combustion of aluminum under the multi-physics field coupling environment can be obtained. By solving the reaction kinetic equations of aluminum particles under the stimulus of high temperature and high pressure, the relativity of the reaction delay duration, phase change, reaction route, and energy-releasing ways with particle size and thermal and dynamic environment can be obtained, thus the combustion mechanism of aluminum particles in detonation on a view of minuteness can be established. Based on this, the technological approaches to enhance the reactive content of aluminum powder and the degree of the reaction can be explored. By using the real-time observing system to characterize and measure the in-situ modified nanoaluminum, the connections between different coating methods, the structure of composite, the reactive content of aluminum, and energy release can be analyzed and obtained. By comparing with the microaluminum particles that have been mainly used in engineering in different views, the ultra-fast reaction dynamics of aluminum can be explored well, and the energetic utilization of aluminized explosives can be enhanced, achieving the reform for the aluminized explosives from being applied passively to tuning their performance via different ways.
期刊论文列表
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科研奖励列表
会议论文列表
专利列表
DOI:10.1016/j.scitotenv.2020.136725
发表时间:2020-04-20
期刊:SCIENCE OF THE TOTAL ENVIRONMENT
影响因子:9.8
作者:Deng, Peng;Jiao, Qingjie;Ren, Hui
通讯作者:Ren, Hui
DOI:10.1016/j.dt.2022.01.001
发表时间:2022
期刊:Defence Technology
影响因子:5.1
作者:Ya-ru Li;Hui Ren;Xin-zhou Wu;Hui-xin Wang;Xi-long Yu
通讯作者:Xi-long Yu
DOI:10.3390/mi12121509
发表时间:2021-12-04
期刊:Micromachines
影响因子:3.4
作者:Chen Y;Ba S;Ren H
通讯作者:Ren H
DOI:10.3390/polym14173699
发表时间:2022-09-05
期刊:POLYMERS
影响因子:5
作者:Wu, Xinzhou;Li, Jun;Ren, Hui;Jiao, Qingjie
通讯作者:Jiao, Qingjie
DOI:10.1038/s41598-020-80865-2
发表时间:2021-01-12
期刊:Scientific reports
影响因子:4.6
作者:Wang H;Ren H;Yan T;Li Y;Zhao W
通讯作者:Zhao W
基于碳纳米管界面组装含能超分子及其能量释放规律研究
  • 批准号:
    50972016
  • 项目类别:
    面上项目
  • 资助金额:
    35.0万元
  • 批准年份:
    2009
  • 负责人:
    任慧
  • 依托单位:
国内基金
海外基金