含能材料2024，Vol.32Issue(5)：465-474,10.DOI:10.11943/CJEM2023268
核壳结构nAl@Cu(BTC)/Fe(BTC)纳米铝热剂的制备及燃烧性能
Preparation and Combustion Performances of Core-Shell Structured Al@Cu(BTC)/Fe(BTC)Nano-Thermite
史喆 1赵媛媛 2马志伟 2杨玉林 3张健 3王旭文 3梁家燕3
作者信息
- 1. 中国五洲工程设计集团有限公司,北京 100053||哈尔滨工业大学化工与化学学院,新能源转换与存储关键材料技术工业和信息化部重点实验室,黑龙江 哈尔滨 150001
- 2. 中国五洲工程设计集团有限公司,北京 100053
- 3. 哈尔滨工业大学化工与化学学院,新能源转换与存储关键材料技术工业和信息化部重点实验室,黑龙江 哈尔滨 150001
- 折叠
摘要
Abstract
In order to solve the inhomogeneous component distributions and low combustion efficiency in the preparation pro-cess of nano-thermite,the core-shell structured nAl@Cu(BTC)/Fe(BTC)was prepared via a layer by layer assembly technique.The structure,morphology,thermal reaction performance(thermite-reaction temperature)and combustion performance(com-bustion time,ignition delay time,and combustion temperature,etc.)of nAl@Cu(BTC)/Fe(BTC)were studied.The results show that the thickness and morphology of the coating layer can be regulated during the layer by layer assembly process.As the thick-ness of the coating layer increases,the nano-thermite gradually changes from rough and loose to smooth and dense.The nano-thermite with alternating 12 layers of Cu(BTC)/Fe(BTC)possesses a severe burning effect with a fast flame propagation rate that reaches the maximum flame within 0.710 seconds.Besides,this sample also achieves a moderate ignition delay time(0.509 s),the shortest combustion time(2.036 s),and the highest combustion temperature(1425℃).Meanwhile,its decom-position peak temperature of aluminum oxidation reaction can be reduced to 552.5℃and 735.0℃due to the synergistic effect of Cu(BTC)and Fe(BTC).关键词
核壳结构/纳米铝热剂/nAl@Cu(BTC)/Fe(BTC)/层层组装技术/燃烧性能Key words
core-shell structure/nano-thermite/nAl@Cu(BTC)/Fe(BTC)/layer-by-layer assembly technology/combustion perfor-mance分类
军事科技引用本文复制引用
史喆,赵媛媛,马志伟,杨玉林,张健,王旭文,梁家燕..核壳结构nAl@Cu(BTC)/Fe(BTC)纳米铝热剂的制备及燃烧性能[J].含能材料,2024,32(5):465-474,10.
