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Milling Dynamics and Propagation of Mechanically Activated Self-Sustaining Reactions
Joint Authors
Cincotti, Alberto
Traversari, Gabriele
Pia, Giorgio
Delogu, Francesco
Source
Advances in Materials Science and Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-10-28
Country of Publication
Egypt
No. of Pages
10
Abstract EN
This work focuses on the propagation of mechanically activated self-sustaining reactions during the mechanical processing of powder in ball mills.
We use a numerical model to reconstruct the dynamics of a single ball and powder particles inside the reactor of a SPEX Mixer/Mill 8000 under operational conditions.
Taking advantage of the analytical description of the reactor swing, the equations of motion of ball and powder particles are solved numerically.
The discrete element method is used to describe contacts.
Reaction is ignited in an individual particle randomly selected among those compressed during an impact between ball and reactor.
A simple kinetic law and a set of rules involving degree of chemical conversion and distance between particles are used to obtain a phenomenological description of the reaction propagation.
We show that the propagation is significantly affected by reaction rate in individual particles, with other factors being less influential.
We observe a strong coupling between the dynamics of powder particles and the reaction propagation.
American Psychological Association (APA)
Cincotti, Alberto& Traversari, Gabriele& Pia, Giorgio& Delogu, Francesco. 2020. Milling Dynamics and Propagation of Mechanically Activated Self-Sustaining Reactions. Advances in Materials Science and Engineering،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1129216
Modern Language Association (MLA)
Cincotti, Alberto…[et al.]. Milling Dynamics and Propagation of Mechanically Activated Self-Sustaining Reactions. Advances in Materials Science and Engineering No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1129216
American Medical Association (AMA)
Cincotti, Alberto& Traversari, Gabriele& Pia, Giorgio& Delogu, Francesco. Milling Dynamics and Propagation of Mechanically Activated Self-Sustaining Reactions. Advances in Materials Science and Engineering. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1129216
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1129216