高压物理学报2025，Vol.39Issue(9)：64-72,9.DOI:10.11858/gywlxb.20240956
金属氧化物对铝热剂燃烧特性的影响
Effect of Metal Oxides on the Combustion Characteristics of Al-Based Thermite
摘要
Abstract
To explore the influence of various metal oxides on the combustion behavior of Al-based thermites,five metal oxides(Bi2O3,Fe2O3,MnO2,CuO,and MoO3),were selected and synthesized via a liquid-phase mixing method.The combustion characteristics,including reaction energy,self-propagating combustion properties,reaction pressure,and ignition delay time,were systematically investigated.The results demonstrated that the choice of metal oxide significantly impacted the combustion performance of Al-based thermites.Among them,Al-MoO3 exhibited the highest reaction energy in an Ar atmosphere((4.10±0.05)kJ/g),the fastest flame spead rate((18.77±1.23)m/s),the highest flame temperature,and the shortest ignition delay time((1.15±0.06)s).Meanwhile,Al-Bi2O3 generated the highest peak pressure and pressure rise rate,with its peak pressure being 1.9,3.5,14.6,and 24.3 times greater than those of Al-CuO,Al-MnO2,Al-Fe2O3,and Al-MoO3,respectively.These findings highlight the potential to regulate thermite combustion properties through strategic metal oxide selection,providing a theoretical foundation for military and industrial applications.关键词
铝热剂/燃烧性能/金属氧化物/反应压力Key words
Al thermite/combustion properties/metal oxides/reaction pressure分类
数理科学引用本文复制引用
蔡悦,刘雪莉,贺川,刘金旭..金属氧化物对铝热剂燃烧特性的影响[J].高压物理学报,2025,39(9):64-72,9.基金项目
国家自然科学基金(52473246) （52473246）
