Spark detonators

Some specialized uses of PETN are summarized below. Expendable cartridges for small arms are made by coating unglazed grains or single base smokeless powder with PETN, spraying with plasticized thermoplastic binder and compression molding to the desired shape (Ref 99). Tucker et al (Ref 85) describe a spark detonator without primary expls. Secondary... 

Mixtures with nitrobenzene, 1- or 4-nitrotoluene, 1,3-dinitrobenzene or 1-nitronaphthalene were found to be high explosives of high sensitivity and detonation velocities [1]. Those with nitrobenzene are spark-detonable [2],... 

Condensed electric spark, detonation of expls by 3C495... 

Si alloy. Popov et al (Ref 14) also published a study in which he spark-detonated Al-Si alloys (19.1 and 80.5% Si) having a 56 micron particle size which were dispersed in an aerosol. It was found that the lower expln limits of these alloys were 44g/m2 for the 19.1% Si concn and 800 g/m2 for the 80.5% Si concn... 

Condensed Electric Spark, Detonation of Explosives by. Basset Basset (Ref) found that small pellets of PETN RDX, pressed at 5000 kg/cm2, are detonated by a spark from the discharge of a condenser at 200012(100 volts, although a spark at the same voltage without a condenser causes only burning. By measuring the capacity of the condenser, it was determined that RDX requires more energy than... 

Spark detonators have now been substituted by -> Bridgewire Detonators. If there is danger of stray currents, low-sensitivity primer types are employed, which can be actuated only by a strong current pulse. 

---