Title

Hydrogen Storage In Titanium-Magnesium-Nickel Mixtures

Abstract

The hydrogen interaction properties of mechanically alloyed mixtures of Ti, Mg, and Ni have been shown to be strongly dependent on the time and energy of ball milling. Mixtures ball milled at a ball to powder ratio (by mass) of 20:1 were able to absorb 3-4 wt% hydrogen. Mixtures ball milled at a ball to powder ratio of 70:1 were able to absorb up to 11 wt% hydrogen. The dependence of hydrogen uptake on ball milling time and energy is shown to be related to the microstructural morphology of the ball milled powders. The original Mg powder particles were heavily deformed by the ball milling process and contained nano-sized inclusions of both Ti and Ni at the surface. The higher energy ball milled samples showed a more refined microstructure and a greater hydrogen capacity. In addition, there was an inverse relationship between the amount of hydrogen uptake and the size of inclusions at the surface of the particles.

Publication Date

11-10-2003

Publication Title

Materials Research Society Symposium - Proceedings

Volume

753

Number of Pages

541-546

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

0242384914 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0242384914

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