基于圆筒实验的RDX/Al炸药反应进程

对RDX炸药和2种铝粉质量分数分别为15%、30%的RDX基含铝炸药进行?50mm圆筒实验，研究铝粉含量对炸药做功能力的影响，根据格尼公式分析铝粉与爆轰产物的反应进程。结果表明:在圆筒实验记录的时间范围内，铝粉质量分数为15%的含铝炸药做功能力最强，RDX炸药次之，铝粉质量分数为30%炸药做功能力最弱；34μs时刻，铝粉质量分数为15%的炸药，铝粉的反应度为0.49，而铝粉质量分数为30%炸药铝粉的反应度仅为0.21，含铝炸药中铝粉的反应时间在50~200μs之间。

Reaction process of aluminized RDX-based explosives based on cylinder test

The copper cylinder tests were carried out to explore the effects of the aluminum contents on the performances of aluminized RDX-based explosives.In the tests, the outer diameter of the copper cylinder was 50 mm and the mass fractions of aluminum in the three RDX-based explosives were 0, 15% and 30%, respectively.In the three explosives tested, the acceleration ability of the explosive with the aluminum mass fraction of 15% was highest.However, the acceleration ability of the explosive with the aluminum mass fraction of 30% was lower than that of the pure RDX.The Gurney formula was used to analyze the reaction process of aluminum with detonation products in the aluminized RDX-based explosives.About 49% aluminum by mass had reacted in the explosive with the aluminum mass fraction of 15% at 34 μs, while in the explosive with the aluminum mass fraction of 30%, only about 21% aluminum by mass had reacted.And the reaction time of aluminum powder with the size of 10 μm was 50-200 μs.