Computational and Theoretical Analysis of the Effect of an Aluminum Borate Oxide Film on the Ignition Conditions of Single Aluminum Diboride Particles

Савельев, А. М.; Титова, Н. С.

doi:10.1134/s0010508221030060

Cited by 3 publications

(1 citation statement)

References 27 publications

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“…Boron is of the greatest interest as a component of high-energy compositions [1,2], whose calorific value is almost twice higher than that of aluminum. However, boron as a fuel has a significant drawback: it is poorly flammable and burns slowly due to the formation of a B2O3 oxide film on the surface of particles [1,[3][4][5], which leads to low combustion efficiency in real propulsion systems. Experiments show that the addition of small amounts of aluminum or magnesium to boron-containing compositions promotes the ignition and more complete boron combustion [6].…”

Section: Introductionmentioning

confidence: 99%

Pyrolysis of boron-containing compositions upon exposure to radiant energy

Basalaev

Kuznetsov

Rashkovskiy

2022

J. Phys.: Conf. Ser.

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The article describes a method and a design of the experimental setup for determining the mass rate of pyrolysis of boron-containing compositions upon exposure to radiant energy and presents experimental data on the mass rate of pyrolysis of binary mixtures consisting of aluminum dodecaboride and polybutadiene binder SKDM-80 depending on the mass fraction of aluminum dodecaboride in the content and heat flux density. It is noted that the ratio of the mass rate of pyrolysis to the mass fraction of the binder in the sample for a given heat flux density depends weakly on the AlB12 content in the sample. This fact indicates that the presence of AlB12 in the mixture affects the sample heating intensity and the binder destruction rate and that AlB12 is carried away under the impact of outflowing gaseous products of the binder pyrolysis.

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Section: Introductionmentioning

confidence: 99%