Ca, mg and ni containing alloys, method for preparing the...

Details Ca, mg and ni containing alloys, method for preparing the... Ca, mg and ni containing alloys, method for preparing the...

C - Chemistry, Metallurgy

22

C

C22C 24/00 (2006.01) B01D 53/02 (2006.01) B22F 3/10 (2006.01) C01B 3/00 (2006.01) C22C 1/04 (2006.01) C22C 19/03 (2006.01) H01M 4/38 (2006.01)

Patent

CA 2373553

Disclosed are new Ca, Mg and Ni-containing alloys of the general formula: ( Ca c Mg d M e )b ( Ni1-z T z )a where: M is at least one metal selected from the group consisting of Y, Ce, La, Pr, Nd, Th, Nd, Ti, V, Zr, Ta, Hf, Sr, Ba and Misch metals; T is at least one element selected from the group consisting of AI, Zn, Cu, Fe, Co, Mn, Cr, Mo, W, Si, Ga, Ge, In, Sn, Ag, C and B; a is an integer equal to 2 or 5 z is a number ranging from 0 to 0.5 when a is equal to 2, then 0.9 <=b<=1.1; and when a is equal to 5, then either 1.75 <=b<=2.25 or 0.75<=b<= 1.31. These alloys which are of the AB2, A2B5 or AB5 types, may be single phase or multiphase and are useful for reversibly absorbing hydrogen from a gas phase. Also disclosed is a method for preparing the above alloys.

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