Formation of phase composition of aluminum matrix composites during mechanical activation and self-propagating high-temperature synthesis

Abstract

The authors investigated the effect of mechanical activation and self-propagating high-temperature synthesis (SHS) on the phase composition of composite materials of Al-TiO2-B system. It has been shown that with increasing the duration of mechanical activation of initial powders the amount of crystalline boron-containing phases in the mixture increases. X-ray diffraction analysis of powder mixtures after SHS allows making conclusion about necessity of activation for at least 45 min to obtain a target compounds. Experimental results allow reasonably choosing the modes of mechanical activation for production of aluminium matrix composites with specified composition and controllable properties.

Effect of Mg Content on Synthesis of TiC Powder from Leucoxene by Self-Propagating High-Temperature Synthesis Method

“…However, these methods require complicated procedures and high amounts of thermal energy during the synthesis process. The self-propagating high-temperature synthesis (SHS) method utilizes the high-exothermic heat released from fuel agents such as magnesium (Mg) [10][11][12], aluminium (Al) [13][14][15] and titanium (Ti) [16]. Fuel agents were used to initiating the chemical reaction that then propagated selfsustainable until completion.…”