Methods of the Synthesis of Aluminum Borides from Elemental Substances for Use as High-Energy Materials: A Review

摘要

Two methods of the synthesis of aluminum borides are considered, one of which is the calcination of a mixture of Al and B powders at temperatures from 900 to 1500 degrees C and the other is high-temperature self-propagating synthesis with mechanical preactivation. It is shown that aluminum borides can be synthesized by mechanical activation alone. All these methods give micrometer-sized particles of aluminum borides. The plasma recondensation of an Al-B mixture produces nanodispersed powders of aluminum borides. The activity of the powders with respect to atmospheric oxygen is determined by thermogravimetric analysis.