title: Multifractal properties of ball milling dynamics.
abstract: This work focuses on the dynamics of a ball inside the reactor of a ball mill. We show that the distribution of collisions at the reactor walls exhibits multifractal properties in a wide region of the parameter space defining the geometrical characteristics of the reactor and the collision elasticity. This feature points to the presence of restricted self-organized zones of the reactor walls where the ball preferentially collides and the mechanical energy is mainly dissipated.
authors.affiliation: Dipartimento di Chimica e Farmacia, Università degli Studi di Sassari, Via Vienna 2, Sassari 07100, Italy.
authors.forename: M A
authors.initials: MA
authors.lastname: Budroni
authors.affiliation: Dipartimento di Chimica e Farmacia, Università degli Studi di Sassari, Via Vienna 2, Sassari 07100, Italy.
authors.forename: V
authors.initials: V
authors.lastname: Pilosu
authors.affiliation: Dipartimento di Ingegneria Meccanica, Chimica, e dei Materiali, Università degli Studi di Cagliari, via Marengo 2, Cagliari 09123, Italy.
authors.forename: F
authors.initials: F
authors.lastname: Delogu
authors.affiliation: Dipartimento di Chimica e Farmacia, Università degli Studi di Sassari, Via Vienna 2, Sassari 07100, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Rustici