Ball milling-induced reduction of MoS₂ with Al

Authors: Takacs, L.; Baláž, P.; Torosyan, A.

Source: Journal of Materials Science, Volume 41, Number 21, November 2006 , pp. 7033-7039(7)

Publisher: Springer

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Abstract:

The ball milling-induced reduction of MoS₂ by Al has been investigated. Although this is a highly exothermic reaction that, based on its thermodynamic properties, should progress as a self-sustaining process, ignition could not be achieved by ball milling. In order to identify the reason, XRD, particle size distribution, SEM, and DTA measurements were carried out on a series of samples milled for different durations. It was found that the largest composite agglomerates broke up due to the presence of a fine dispersion of MoS₂ particles. SEM also revealed that the grains are packed rather loosely within the agglomerates. These results indicate that a self-sustaining process can take place only if large and well-compacted composite particles are present.

Document Type: Research article

DOI: http://dx.doi.org/10.1007/s10853-006-0950-6

Affiliations: 1: Email: takacs@umbc.edu

Publication date: 2006-11-01