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This paper is the continuation of our previous paper. In this work, we optimized the synthesis of aluminum borides by the SHS method. The purpose of the research was to develop the foundations of waste-free technology. The initial components were powders of boric anhydride (B2O3), aluminum (Al), the oxide-heating additive (KNO3), various fluxing ad...
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... assume that this can be explained by the fact that AlF 3 formed from alkaline and alkaline earth fluorides, which have the highest surface-active properties and relieve surface tension in the melt, which should ensure the complete separation of the slag and alloy. Figure 5 shows a sample of an aluminum boride alloy obtained in the SHS mode. Alloy samples were analyzed for elemental composition by X-ray spectral analysis. ...
Citations
... One of the ways to improve the energy characteristics of high-energy condensed systems is the use of metal in their compositions in the form of powders of various dispersions (aluminum, beryllium, boron, lithium, magnesium, etc.), as well as their hydrides. Metal fuel in its pure form cannot be a source of reactive energy, but if it is mixed with an oxidizing fuel, then the heat generated during the combustion of the metal fuel significantly increases the temperature of the resulting gas and, consequently, its outflow rate increases, which increases the specific jet thrust [1,2]. ...
This article discusses the combustion of high-energy systems based on the oxidizers ammonium nitrate, potassium nitrate, and a mixture of highly active aluminum grade PAP-1 under conditions of a deficiency or excess oxidant α, under a pressure reduction in the range of 0.1–3 MPa. The objective of this study is to develop materials for the production of high-energy compositions based on oxidizers of ammonium and potassium nitrate, fuel binder, and metallic fuel in the form of aluminum powders ASD-6 and PAP-1. The influence of the amount of excess oxidizer, the amount of metallic fuel, and the grade of aluminum on the rate and completeness of combustion of a high-energy composition have been studied. Experiments were carried out on the studied high-energy systems, depending on the grade of aluminum used and the excess of the oxidizing agent α, and the influence of pressure on the burning rate. The compositions of high-energy compositions based on highly active aluminum with the highest combustion rate of mixtures and combustion completeness were determined.
