Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1984-06-29
1986-03-18
Brody, Christopher W.
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
420416, 420900, 423644, C22C 3800
Patent
active
045766401
ABSTRACT:
A hydrogen storage material for releasably storing hydrogen having a microstructure containing an alloy phase of the general formula R.sub.2 Fe.sub.17, wherein R is cerium and lanthanum and, optionally, at least one other rare earth element, and wherein a microstructure also contains from about 2 to 35% by weight, based on the total weight of all phases, of a eutectic of the formula R'/R'Fe.sub.2, wherein R' is lanthanum-starved R; the alloy phase of the general formula R.sub.2 Fe.sub.17 being present in an amount of not less than 40% by weight of the material, and the material contains less than 60% by weight of cerium based on the total amount of cerium, lanthanum and, if present, at least one other rare earth element. A method for producing such material by heat treating in an inert atmosphere so as to homogenize same and to increase the proportion of alloy phase in the material is also described.
REFERENCES:
Van Mal H. H. et al. "Hydrogen Absorption of Rare Earth (3d) Transition Intermetallic Compounds" J. Less Comm. Metals 49(1976) pp. 473-475.
Ray A. E. "Iron-Rare Earth Intermediate Phases" Proc. Rare Earth Res. Conf. 1968 CA 41399d.
Harris Ivor R.
Wootton Malcolm J.
Brody Christopher W.
Lucas Industries Public Limited Company
LandOfFree
Hydrogen storage material does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydrogen storage material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrogen storage material will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2304005