Influence of electron concentration on the hydrogen absorption by RM5Haucke compounds
- 1 January 1982
- journal article
- Published by IOP Publishing in Journal of Physics F: Metal Physics
- Vol. 12 (1), L1-L6
- https://doi.org/10.1088/0305-4608/12/1/001
Abstract
Analysis of the electronic specific heat constant for some Y(Ni,Al)5, La(Ni,Al)5, La(Ni,Cu)5 and Th(Ni,Al)5 alloys suggests that the amount of hydrogen absorbed in excess of 3 H atoms per RM5 formula unit (0.5 H atom per metal atom) by the RM5 phases depends upon the number of unpaired 3d nickel electrons. The so-called 'aluminium anomaly' is also explained on the basis of these results.Keywords
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