含TNT注装混合炸药爆轰产物电导率实验研究

Electrical Conductivity for the Detonation Products of Some Explosives with Cast TNT

改进了炸药爆轰产物电导率的同轴测试系统,测量了TNT注装炸药中加入RDX、Al、KCl等药剂后爆轰产物的平均电导率,得出了不同RDX含量的TNT/RDX炸药平均电导率最大值变化曲线。结果表明:TNT中加入RDX后会减少其爆轰产物的电导率,而加入Al后TNT炸药爆轰产物的电导率明显高于不含Al炸药,加入5%Al粉平均电导率最大值即可增大4倍以上。另外,加入KCl也会增大TNT/RDX混合炸药的电导率。

The coaxial measurement system of electrical conductivity for the detonation products was improved. The average electrical conductivitics of cast TNT mixed with RDX, AI, KCI were studied, and the curves of maximal average electrical conductivity vs RDX fraction α in cast TNT/RDX compositions were obtained. Results show that the maximal average electrical conductivity decreases with the increasing of RDX fraction α in cast TNT/RDX compositions. The electrical conductivity of aluminized TNT is obviously higher than that of TNT, and the maximal average electrical conductivity of TNT 95/Al 5 （ density 1. 662 g · cm^-3 ） is over 4 times of cast TNT （ density 1. 618 g · cm ^-3 ）. Also the electrical conductivity of TNT/RDX increases when KCI is mixed in TNT/RDX compositions.