Author/Authors :
Aghajani, Hossein School of Metallurgy & Materials Engineering - Iran University of Science and Technology - Narmak - Tehran, Iran , Taghizadeh Tabrizi, Arvin School of Metallurgy & Materials Engineering - Iran University of Science and Technology - Narmak - Tehran, Iran , Arabpour Javadi, Salva Materials Engineering Department - University of Tabriz - Tabriz, Iran , Taghizadeh Tabrizi, Mohammad Ehsan Faculty of Mechanical Engineering - University of Tabriz - Tabriz, Iran , Homayouni, Aytak Faculty of Mechanical Engineering - University of Tabriz - Tabriz, Iran , Behrangi, Sahand Department of Physical Electronics - Masaryk University - Brno, Czech
Abstract :
Understanding the phase formation mechanisms in self-propagating high-temperature synthesis from the thermodynamical aspect of view is important. In this study, the phase formation of the ternary system of nickel-titanium-silicon was studied by using the HSC software V6.0, and phase formation is predicted by calculating the adiabatic temperature of exothermic reaction between reagents. Then, by using X-ray diffractometer analysis, the results of the simulation were evaluated by experimental achievements. Results showed a good correlation between thermodynamical calculation and prediction with experimental. It could be concluded that the equilibrium mechanism is the dominant mechanism in phase formation in the SHS synthesis method. NiTiSi solid solution phase is obtained from the reaction between Ti5Si3 and Ni2Si and Ni.
Keywords :
Thermodynamic , Adiabatic temperature , Self-propagating high-temperature , synthesis , Phase formation
