Non-monotonic variation of the grain size in Cu nanopowders subjected to ball milling
Copyright policy )Non-monotonic variation of the grain size in Cu nanopowders subjected to ball milling
Ball milling (BM) a Cu nanopowder resulted in an increase of the average grain size from 8 to 52 nm, followed by a gradual decrease to 19 nm. In contrast, the grain size of coarse-grained Cu decreased monotonically from 290 nm to 19 nm. Fitting a model to the kinetic curves indicates that the two processes have similar activated volumes during collisions. It also reveals that particles over 100 nm are formed when nanoparticles are compressed during a collision for the first time.
University of Cagliari and performed within the European Community Horizon 2020 Programme, COST Action CA15102 Solutions for Critical Raw Materials under Extreme Conditions (CRM_EXTREME)
- University of Maryland, Baltimore County United States
- University of Maryland, Baltimore United States
- University of Burgos Spain
- University of Cagliari Italy
- University of Sassari Italy
Ball milling, Kinetics, Materiales, Ball milling; Kinetics; Metals and alloys; Microstructure; Materials Science (all); Condensed Matter Physics; Mechanics of Materials; Mechanical Engineering, Metals and alloys, Microstructure, Materials, Ball milling; Metals and alloys; Microstructure; Kinetics
Ball milling, Kinetics, Materiales, Ball milling; Kinetics; Metals and alloys; Microstructure; Materials Science (all); Condensed Matter Physics; Mechanics of Materials; Mechanical Engineering, Metals and alloys, Microstructure, Materials, Ball milling; Metals and alloys; Microstructure; Kinetics
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