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Study on mechanism of mechanical activation

journal contribution
posted on 15.06.1997, 00:00 authored by Ying (Ian) ChenYing (Ian) Chen, T Hwang, M Marsh, J S Williams
A mixture of ilmenite and graphite with a mass ratio (1:1) was ball milled at room temperature and subsequently annealed under Ar flow. The enhanced carbothermic reactions were monitored by using thermogravimetric analysis and X-ray diffraction analysis. A series of reduction reactions occurs with a higher reaction rate in a temperature range lower than that without pre-milling. A longer milling time leads to a lower reaction temperature. This effect of mechanical activation induced by ball milling results from a composite structure formed during the milling process.

History

Journal

Materials science and engineering A

Volume

226-228

Pagination

95 - 98

Publisher

Elsevier

Location

Amsterdam, The Netherlands

ISSN

0921-5093

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

1997, Elsevier Science S.A.