| 摘要 |
<p>Inorganic fuel selected from the group of sulphocyanides of noble metals as specially copper, as well as the derivatives of urea and semicarbazide and theirs derivatives and organic fuel selected from the group of thiols with sulphur bound in the -SH group or in the heterocyclic rings and the metal salts of these compounds, mostly cuprous or cupric, which are suitable for the infrared tracer compositions used in bullets. With a suitable oxidant, which is zinc peroxide, the fuel forms binary mixtures that, during combustion, emit radiation in the near- infrared region that is invisible to the naked eye. On the basis of this invention tracer compositions do not require any additional auxiliary pyrotechnic systems. They are intended for use in infrared tracers of conventional calibres of bullet ammunition.</p> |
