ИСТИНА

Currently considerable interest has been attracted to combustion of chlorine-free oxidizers such as ammonium dinitramide (ADN). It is obvious, that a comprehensive understanding of combustion behavior and mechanism of the oxidizer is essential to predict its performance in practical application. Study of burning behavior of organic derivatives of dinitramide is believed to allow revealing combustion peculiarities of ADN-based mixtures if being considered as model compositions of molecular level of oxidizer-fuel premixing. The purpose of this study is to examine the combustion behaviour of large range of dinitramide salts in order to reveal the combustion mechanism. The paper presents a detailed analysis of the ADN combustion behavior as well as burn rate study on large range of dinitramide salts. Thermocouples-aided studies on temperature distribution in the combustion wave of ADN and other dinitramide salts were performed with the help of thin tungsten-rhenium microthermocouples. Analysis of temperature profiles and combustion behaviors of the studied salts allowed the mechanism of burning of ADN and other dinitramide salts to be proposed.