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Transformations and Hydrogen Storage in Ball-Milled Iron-Titanium

  • P. Tessier (a1), L. Zaluski (a1), Z.-H. Yan (a2), M.L. Trudeau (a2), R. Bormann (a3), R. Schulz (a2) and J.O. Ström-Olsen (a1)...

Abstract

Nanocrystalline and amorphous Fe-Ti at or close to the equiatomic composition have been prepared by ball milling, starting either from the elemental components or from the pre-melted intermetallic. The final structure, whose evolution has been monitored by Xray diffraction and transmission electron microscopy, is found to be critically dependent on milling conditions and contamination level.

Hydrogen absorption properties of both the amorphous and nanocrystalline alloys have been investigated. These properties are substantially modified by the reduction in grain size. We will also discuss the influence of the activation process and repeated hydrogen charging on substitutional disorder and grain size.

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Transformations and Hydrogen Storage in Ball-Milled Iron-Titanium

  • P. Tessier (a1), L. Zaluski (a1), Z.-H. Yan (a2), M.L. Trudeau (a2), R. Bormann (a3), R. Schulz (a2) and J.O. Ström-Olsen (a1)...

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