Abstract
The oxidation of amorphous boron powders modified with vanadium pentoxide was studied by thermogravimetry, differential scanning calorimetry, x-ray diffraction analysis, and electron microscopy. The modification was carried out by mixing powders with vanadium-containing gels: V \({}_{2}\) O \({}_{5}\cdot n\) H \({}_{2}\) O hydrogel and V \((\textrm{OCH}_{2})_{2}\cdot n(\textrm{HOCH}_{2})_{2}\) oleogel. It was found that adding 2 \(\%\) (wt.) V \({}_{2}\) O \({}_{5}\) to the amorphous boron powder led to a decrease of 200 \({}^{\circ}\) C in the temperature of the onset of its intense oxidation and to a 25 \(\%\) increase in the specific heat release during interaction under heating in air at a rate of 10 \({}^{\circ}\) C/min. The reaction of boron with vanadium pentoxide is considered within the framework of the borothermal process model.
