Borides and vitreous compounds sintered as high-energy fuels

A Crossed Molecular Beam Study on the Reaction of Boron Atoms with Methylacetylene and Partially Deuterated Methylacetylene

“…Due to its high energy density, both in volume and gravity terms, [1,2] boron has long been regarded as a good candidate for rocket fuel additives. [3][4][5][6] To fulfill this potential, it is essential to understand the boron combustion chemistry and the reactions of boron atoms with hydrocarbon fuels on the molecular level.…”

Effect of the boron content in the aluminium/boron composite

“…Different mixtures were obtained by adding 10, 20, 25 and 50 wt.% of amorphous boron (with Mg impurities, from Strem Chemicals, France) to the aluminium, being careful to achieve a homogeneous mixture and avoiding boron agglomerates [1]. Properties of both powder materials are shown in Table 1.…”

“…Al-B system has been partially studied from the 60s mainly for military applications, due to its importance in the development of solid fuels [1]. Thermodynamical parameters of amorphous boron combustion aroused interest for being suitable for a wide range of jet engines such as SDR ("Solid Ducted Rocket"), SFRJ ("Solid Fuel Ramjet") and also as a fuel additive for turbojets used both on civil and military aircrafts.…”

“…For solid fuel investigation purposes, main interest is focused on that area of diagrams [1], allowing us in-depth knowledge of this area. Nevertheless, boron rich materials are not employed in structural applications, due to their poor mechanical properties and also because it is impossible to machine them.…”

Nanodispersive aluminum boride prepared by a plasma recondensation of aluminum and boron micron powders

“…In this process, aluminum boride is formed with various aluminum/boron ratios, mainly, aluminum diboride, decaboride, and dodecaboride [9,10]. Nonreactive boron-rich stable phase AlB 30-45 arises along with these compounds [9].…”