Study of Combustion Mechanism of Nitramine-Polymer Mixtures
Abstract
Combustion mechanism of mixtures of RDX- and HMX-copolymer (like HTPB) was investigated by microthermocouple techniques. The following parameters were found and analysed at different pressures, sample initial temperatures and oxidizer content: burning rates, burning surface temperatures, temperatures and sizes of different zones of combustion waves, thickness of heat and melted layers in solid, characteristic thickness and conductive sizes in the gas phase, heat release in solid, heat feedback from gas to solid, heat release rate in gas, macrokinetic laws of solid gasification, temperature sensitivities of burning rate and burning surface temperature. It was established that the significant heat release in solid and the weak heat feedback from gas to solid are observed for all mixtures. The control region in the combustion waves which governs the burning rate is placed in solid and in a thin gas layer close to surface. It was found that increase of the amount of oxidizer in the mixtures decreases temperature sensitivities of burning rate and burning surface temperature for both oxidizers.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1998
- Accession Number
- ADA359156
Entities
People
- Anatoli A. Zenin
Organizations
- Russian Academy of Sciences