Role of shear stiffening in reducing hydrogenation in intermetallic compounds

I. Jacob, M. Bereznitsky, O. Yeheskel, R. G. Leisure

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

The authors report on a pronounced increase in the elastic shear modulus of a wide class of binary intermetallics upon pseudobinary substitution. They further claim that the aforementioned increase in the rigidity of these compounds is the mechanism underlying the well documented, sharp decline of hydrogen absorption in these compounds. They suggest that a clamping effect occurs in the bulk due to the high shear modulus, preventing the formation of dislocations and thus inhibits the hydrogenation. Identifying this mechanism suggests that, in order to reach good hydrogen absorbers, effort should be invested in designing compounds where shear stiffening does not occur.

Original languageEnglish
Article number201909
JournalApplied Physics Letters
Volume89
Issue number20
DOIs
StatePublished - 23 Nov 2006

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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