| Issue |
Europhys. Lett.
Volume 56, Number 3, November 2001
|
|
|---|---|---|
| Page(s) | 441 - 446 | |
| Section | Interdisciplinary physics and related areas of science and technology | |
| DOI | https://doi.org/10.1209/epl/i2001-00538-7 | |
| Published online | 01 December 2003 | |
Crystal growth and the steady-state grain size during high-energy ball-milling
1
Department of Physics, Building 307,
Technical University of Denmark
DK-2800 Kgs. Lyngby, Denmark
2
Department of Manufacturing Engineering, Building 204
Technical University of Denmark -
DK-2800 Kgs. Lyngby, Denmark
Corresponding author: jiang@fysik.dtu.dk
Received:
27
February
2001
Accepted:
2
August
2001
The change in crystal size during high-energy ball-milling of
hematite and zinc sulphide powders with initial average crystal
size of 8
and 4, 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.
PACS: 81.20.Wk – Machining, milling / 61.82.Rx – Nanocrystalline materials / 61.46.+w – Nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals
© EDP Sciences, 2001
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