Abstract
Detailed studies on the sintering and grain growth of ball milled nanocrystalline nickel power were carried out. The analysis of grain coarsening process was found to be very helpful for understanding the sintering mechanisms. The explosive grain growth was observed at higher temperature and the activation energy of grain growth increased with increasing temperature. The grain boundary diffusion was identified as grain growth mechanism at lower temperatures. This powder showed very low activation energy of sintering (66.2 ± 3 kJ mol −1). The surface diffusion was found as dominating mechanism through out the sintering. At higher temperatures lattice diffusion was found to be controlling both, sintering and grain growth.
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.
