Segregation behavior of the intermetallic compounds ZrNiAl, YNiAl and UNiAl

I. Jacob, M. Fisher, Z. Hadari

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

The surface layers of the intermetallics ANiAl (A = Zr, Y, U), exposed to the ambient air, residual gases and oxygen, were investigated by X-ray photoelectron spectroscopy. The surface and the oxidation energies of the metal components were considered as the possible driving forces for the surface decomposition. A "rule of reverse stability" exists for the three isostructural compounds, i.e., the less stable one (UNiAl) exhibits the most significant segregation. An extrapolated degree of segregation of the air-exposed intermetallics yields a good agreement with previously proposed quantitative model.

Original languageEnglish
Pages (from-to)401-405
Number of pages5
JournalSolid State Communications
Volume60
Issue number4
DOIs
StatePublished - 1 Jan 1986

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