Burning rate of composite systems as a function of the particle size of the components at different fuel-oxidizer ratios

Kondrashkov, Yu. A.; Bakhman, N. N.; Belyaev, A. F.

doi:10.1007/bf00791862

Cited by 2 publications

(1 citation statement)

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“…It is known that, in many cases, increasing the particle sizes of the components in heterogeneous systems leads to a decrease in the average burning rate [4]. However, the influence of the particle size of the components on the combustion stability of such systems has not been studied.…”

Section: And Discussionmentioning

confidence: 99%

The effect of the structure of the starting mixtures on the combustion of gas-generating compositions based on sodium azide

Алешин

Иванова

Mikhailov

2008

Combust Explos Shock Waves

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It is established that the combustion of mixtures of sodium azide with aluminum oxide and potassium dichromate at the lower limit for the dichromate content occurs in a chaotic self-oscillatory regime. Modification of the structure of the starting mixture by increasing the dichromate particle sizes from 40-60 K to 250-500 µm lead to significant stabilization of its combustion parameters. The amount impurities and aerosols in generated nitrogen is considerably decreased by reducing the energy content of sodium azide based composition. Using the relay-race model of combustion of heterogeneous systems, it is shown that, under the given conditions, the burning rate of such compositions is determined by the time of heating of potassium dichromate particles to the ignition temperature by neighboring burning particles.

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Section: And Discussionmentioning

confidence: 99%