The initiation of explosion by light

Abstract
By means of a tabular compilation it is shown that a large number of explosion primers can be caused to detonate by brief irradiation with the sparks from energetic electric discharges. Whereas it could be found that in the case of nitrogen iodide there is a weak photochemical effect (5 to 10%) in all other cases initiation is due to the sudden heating of the compounds, therefore a photothermic effect. A number of proofs can be given for this phenomenon. In the case of silver nitride Ag 3 N, it is even possible to prepare layers so. thin that the ignition (with correspondingly increased energy) can be effected in the area of the incident radiation, but cannot be caused to spread to other areas of the layer. These layers are suitable for the making of prints. With equal layer-thickness the energy required for the initiation increases with the duration of the igniting spark.

This publication has 0 references indexed in Scilit: