Abstract
Mechanical alloying processes in four Fe2O3MO (M: Zn, Ni, Cu, Mg)
systems by high-energy ball milling from simple oxide powder
mixtures in both open and closed tungsten carbide containers have
been investigated by x-ray powder diffraction and Mossbauer
spectroscopy. Mechanisms for the formation of MFe2O4 ferrites are
critically discussed. No significant with respect to ferrite
formation rates was observed in open and closed containers used
here. In the Fe2O3/ZnO system, a single ferrite phase can be
synthesized but in other systems no significant amounts of
ferrites are formed by high-energy ball milling under the
conditions used here. The dominant alloying mechanism depends on
the interdiffusion at relatively low temperatures. The
experimental results may also be explained by the crystal
structures of the reactants and the ferrites.
Original language | English |
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Journal | Materials Science Forum |
Volume | 312 |
Pages (from-to) | 115-120 |
ISSN | 0255-5476 |
Publication status | Published - 1999 |