ABSTRACT
A new shrinkage kinetic equation accounting for the extension of the interparticle contact areas is proposed. The mass transport mechanism responsible for shrinkage is bulk diffusivity. Shrinkage increases on increasing the internal neck radius that represents the geometrical activity in sintering of prior cold compacted powders.
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Disclosure statement
No potential conflict of interest was reported by the authors.
Notes on contributors
S. Baselli received the MSc in Materials and Industrial Production Engineering in 2016 from University of Trento and is currently PhD student at the Department of Industrial Engineering, Trento University. She is the winner of the EPMA PM Master Thesis award in 2017.
A. Molinari received the Ph.D. degree in Metallurgical Engineering in 1986 from Torino Technical University, Italy. He is currently a full professor of the Department of Industrial Engineering, Trento University. His main research activity is devoted to the study of mechanisms of cold compaction and of sintering of metallic powders, to mechanical and wear properties of sintered steels, to the application of AM in medical industry. He received Honour Ph.D. by University Carlos III, Madrid in 2016 and is Fellow of EPMA and of APMI.