Powders of metal borides obtained by the SHS method and low-temperature plasma

Ilya Zhukov,Anton Khrustalev,Vladimir Promakhov,Alexander Vorozhtsov,Alexander Zhukov,Yana Dubkova,A Vorozhtsov

doi:10.1051/matecconf/201824300015

Abstract

This paper introduces principle possibility of producing aluminum and titanium boride predetermined morphology using the SHS method and plasma processing. Thermal analysis data for synthesized boride powders in comparison with boron powder and nano-sized aluminum are presented It was found that the synthesized metal borides, according to the thermal analysis data, are promising as a fuel in high-energy materials: the oxidation state of AlB2 is ~ 80%, at a degree of boron oxidation ~ 20%, aluminum ~ 67%.

Highlights

With the modern development of the aviation and aerospace industries, there is an increasing need for the development of new materials to improve the performance characteristics of aircraft
In addition to the improvement of materials for the spacecraft skin, its structural parts and electronics, the development of new types of energy materials that can improve fuel efficiency is of great importance
Increasing the heat of combustion, burning rate, density and other thermodynamic and mechanical characteristics of fuels is a top priority for the transport and aerospace industry

Summary

Introduction

With the modern development of the aviation and aerospace industries, there is an increasing need for the development of new materials to improve the performance characteristics of aircraft. Increasing the heat of combustion, burning rate, density and other thermodynamic and mechanical characteristics of fuels is a top priority for the transport and aerospace industry. For boron is almost two times higher than for aluminum [3, 4] Owing to this characteristic, it is possible to significantly reduce the specific propellant consumption, increase the density of impulse, as well as achieve higher aircraft speeds. The oxidation of metal borides does not result in the formation of an oxide layer impenetrable for oxygen [5]. The use of potentially high boron exothermicity becomes possible if it is used in the form of metal borides which have high values of the heat of combustion. Heat of combustion of borides (Table 1) is significantly higher than the values for corresponding metals (Table 2)

B Mg Al Ti Zr

Experimental part

Results and discussion

Conclusions