Mechanical activation of crystallization of amorphous boron and synthesis of Al3Ti under cold isostatic pressing of B–Al–(LaB6–TiB2) powder

Abstract

The powder mixture consisting of amorphous boron, crystalline aluminum, and a composite material LaB₆–TiB₂ is cold-isostatically-pressed under a pressure of up to 0.6 GPa and then heated to 1000°C. It is found out that almost the entire amount of amorphous boron contained in the mixture has been crystallized and the synthesis of Al₃Ti has been noted, while the crystallization of amorphous boron usually occurs at a temperature of 1500°C.