Crystal growth and the steady-state grain size during high-energy ball-milling

Steen Mørup, Jianzhong Jiang, Franz Bødker, Andy Horsewell

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The change in crystal size during high-energy ball-milling of hematite and zinc sulphide powders with initial average crystal size of 8 nm and 4 nm, respectively, has been investigated by X-ray powder diffraction and transmission electron microscopy. It is found that the crystal size increases with ball-milling time. This result shows that the steady-state grain size in ball-milling experiments of bigger particles can be explained by an equilibrium between fracturing and crystal growth. The kinetics of crystal growth during ball-milling of nanoparticles is discussed with reference to a simple empirical model.
Original languageEnglish
JournalEPL
Volume56
Issue number3
Pages (from-to)441-446
ISSN0295-5075
DOIs
Publication statusPublished - 2001

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