铜氧化物对钨系延期药的燃烧催化作用

Research on Catalytic Behavior of Copper Oxide on the Combustion of Tungsten-based Deferred Drugs

为了解决延期药在导弹武器系统以及空间飞行器作用过程中暴露出的延期时间不稳定、延期时间漂移过大等问题,提高武器装备系统的使用可靠性和安全性,开展了铜氧化物对钨系延期药燃烧性能催化行为研究。通过扫描电子显微镜(SEM)、差示扫描量热技术(DSC)系统分析了Cu_(2)O以及CuO分别与高氯酸钾混合物的微观形貌与热分解性能,通过延期药发火性能试验验证了新型钨系延期药体系的燃烧性能。结果表明,CuO与Cu_(2)O的加入分别使高氯酸钾(KClO_(4))热分解峰值温度下降了109.1与103.5℃,对KClO_(4)热分解过程促进作用CuO优于Cu_(2)O;添加有金属氧化物的配方Y-1与Y-2的燃烧速率相比于原始配方(Y-0)均有提高,与混合物热分解过程表现出一致的催化作用规律,CuO的燃烧催化效果与燃烧稳定性均优于Cu_(2)O。

In order to solve the problems of unstable and excessive delay time drift exposed in missile weapon systems and space vehicles,and improve the reliability and safety of weapons and equipment systems,the catalytic behavior of copper oxide on the combustion performance of tungsten-based delay compositions were investigated.The micromorphology and thermal decomposition properties of Cu_(2)O and CuO respectively mixed with potassium perchlorate(KClO_(4))were analyzed by scanning electron microscopy and differential scanning calorimetry,and the combustion performance of the new tungsten-based delayed compositioin system were verified by the fire performance test of the extended drug.The results showed that the addition of CuO and Cu_(2)O reduced the thermal decomposition peak temperature of KClO_(4) by 109.1℃and 103.5℃,respectively,and promoted the thermal decomposition process of KClO_(4) by CuO>Cu_(2)O.The burning rates of formulas Y-1 and Y-2 with metal oxides addition are both higher than that of the original formula(Y-0),showing a consistent catalytic effect with the thermal decomposition process of the mixture.The combustion catalytic effect and combustion stability of CuO are better than those of Cu_(2)O.