Parametrization of the mechanically induced self-propagating high-temperature synthesis (MI-SHS) of Ti5Si3

Mechanically activated self-propagating high-temperature synthesis (MA-SHS) is one of the most used methodologies to synthesize titanium silicides, especially Ti5Si3. However, the problem in this methodology is to know the milling conditions needed to mechanically activate (MA) or mechanically induce (MI) the reaction of the starting materials. This information is fundamental for obtaining reproducible results. Therefore, the parametrization of the mechanically induced self-propagating high-temperature synthesis (MI-SHS) of Ti5Si3 is explored in the present study. A simple kinematic approach is used to parametrise the mechanically induced reaction as a function of the milling parameters, such as the angular velocity of the mill and the grinding time. The accumulated and transferred energy per hit needed to induce the MI-SHS of Ti5Si3 are predicted. A kinetic approach that allows the complete parametrization of mechanically induced reactions is also used.

Automated summary

Mechanically activated self-propagating high-temperature synthesis (MA-SHS) is commonly used to synthesize titanium silicides, particularly Ti5Si3. However, determining the milling conditions necessary for mechanically activating (MA) or inducing (MI) the reaction remains a challenge. This study explores the parametrization of mechanically induced self-propagating high-temperature synthesis (MI-SHS) of Ti5Si3. A simple kinematic approach is used to parameterize the mechanically induced reaction based on milling parameters, such as angular velocity and grinding time. The energy required for inducing the MI-SHS reaction of Ti5Si3 is predicted using a kinetic approach that allows for complete parametrization.