2026-04-22T20:18:20Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/57102024-07-25T07:22:40Zcom_10259_9476com_10259.4_106com_10259_2604col_10259_9477

00925njm 22002777a 4500 dc Lasio, Barbara author Pia, Giorgio author Garroni, Sebastiano author Orrù, Roberto author Takacs, Laszlo author Delogu, Francesco author 2018-02 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. 0167-577X http://hdl.handle.net/10259/5710 10.1016/j.matlet.2017.10.077 Ball milling Metals and alloys Microstructure Kinetics Non-monotonic variation of the grain size in Cu nanopowders subjected to ball milling