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Milling dynamics. I - Attritor dynamics: Results of a cinematographic studyThe motions of grinding media and powder in an attritor canister were studied by means of filming the agitated charge and frame-by-frame scrutiny of the footage. In conjunction with auxiliary experiments, this permitted semiquantitative analysis of the milling action. In particular, the mill can be divided into several regions characterized by different balances between direct impacts and rolling/sliding of the grinding media. Simple calculations suggest that impacts are more capable of effecting mechanical alloying (MA) than are rolling or sliding events in an attritor. Powder circulation within an operating mill was also investigated. Based on the results and the accompanying analysis, concepts for improved attritor design are presented.
Document ID
19930041119
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Rydin, R. W.
(Delaware Univ. Newark, United States)
Maurice, D.
(Virginia Univ. Charlottesville, United States)
Courtney, T. H.
(Michigan Technological Univ. Houghton, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1993
Publication Information
Publication: Metallurgical Transactions A - Physical Metallurgy and Materials Science
Volume: 24A
Issue: 1
ISSN: 0360-2133
Subject Category
Mechanical Engineering
Accession Number
93A25116
Distribution Limits
Public
Copyright
Other

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