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.
Highlights
Improvement of the engineering materials is the essential issue to help researchers, scientists, and engineers to fulfill the needs of human beings [1]
In the case of the SHS process, thermodynamics is used to calculate the adiabatic temperature of the reactions (Tad) and equilibrium possible products
As shown the Q produced within the reaction, in an adiabatic container, which could be calculated by the difference of the standard enthalpy of the components
Summary
Improvement of the engineering materials is the essential issue to help researchers, scientists, and engineers to fulfill the needs of human beings [1]. Different synthesizing methods have been used to obtain specific composites like friction stir processing [2], casting [3], hot isostatic pressing [4], powder metallurgy [5], spark plasma sintering [6], In situ synthesis, 3D printing [7] and self-propagating high-temperature synthesis (SHS) methods [8]. Self-propagating high-temperature synthesis (SHS) is a method based on the initiation of exothermic reaction between initial ingredients as a powder in an adiabatic container [9] This adiabatic container helps to keep the produced heat from a chemical reaction and causes the required energy to continue the reaction and achieving the final considered composition [10,11]. The results are compared by experimental phase formation of Ni-Ti-Si nanocomposites synthesized by the SHS route
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
