Abstract
The conditions of milling are of crucial importance in determining the kind of solid state reaction that can take place, among various possible paths, in a given system submitted to the mechanical alloying (MA) process. A model correlating the energy transfer during milling with the experimental parameters (rotation speed, mass and diameter of the balls) has been verified with the Pd-Si system. The composition Pd 80Si 20 has been milled, starting from pure elemental powders, in different milling conditions and the MA process followed by X-ray and differential scanning calorimetry measurements. It has been found that for high levels of energy transfer the system evolves towards the formation of the intermetallic Pd 3Si. At lower levels of energy transfer, formation of a stable intermetallic phase is hindered and the reaction product is a fully amorphous phase. The amorphous structure of the MA sample has been compared with an amorphous melt-spun ribbon of the same composition.
Sign-in/Register to access full text options 
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.
