High energy milling of Cu2O powders
No Thumbnail Available
Date
2011
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Whole Powder Pattern Modelling was employed to investigate the microstructure
changes in Cu2O powders milled in a vibrating cup mill. The reduction in the average size of
coherently scattering domains - and simultaneous narrowing of the size distribution - occurs
in the first minutes. An asymptotic limit of ca. 10 nm is obtained. The size reduction is
obtained at the expense of introducing a massive quantity of dislocations in the system,
reaching a limit of ca. 4×10-16 m-2. A proper nanocrystalline microstructure can be obtained
with an effective milling time of ca. 20 min.
Description
Research Article
Keywords
high energy milling, Whole Powder Pattern Modelling