MECHANOSYNTHESIS OF IRON CARBIDES AT COMPOSITION FE75C25 - MODELING OF THE PROCESS KINETICS

Authors
MIANI F MATTEAZZI P BASSET D
Citation
F. Miani et al., MECHANOSYNTHESIS OF IRON CARBIDES AT COMPOSITION FE75C25 - MODELING OF THE PROCESS KINETICS, Journal of alloys and compounds, 204(1-2), 1994, pp. 151-156
Citations number
21
Categorie Soggetti
Chemistry Physical","Metallurgy & Mining","Material Science
Journal title
Journal of alloys and compounds → ACNP
ISSN journal
09258388
Volume
204
Issue
1-2
Year of publication
1994
Pages
151 - 156
Database
ISI
SICI code
0925-8388(1994)204:1-2<151:MOICAC>2.0.ZU;2-Y
Abstract
The mechanosynthesis of iron carbides, at composition Fe75C25, was inv estigated with regard to modeling of the kinetic behavior. Experiments were performed in a vibratory ball mill exploring different milling c onditions. Fe-57 Mossbauer spectroscopy and X-ray diffraction were use d to characterize the ball-milled powders. The iron conversion kinetic s, investigated with some 90 samples, is found to follow a sigmoid-typ e curve. A correlation is also established between the time at which t he maximum iron conversion rate is obtained and the ball-to-powder wei ght ratio.