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 language | English |
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Pages (from-to) | 401-405 |
Number of pages | 5 |
Journal | Solid State Communications |
Volume | 60 |
Issue number | 4 |
DOIs | |
State | Published - 1 Jan 1986 |
ASJC Scopus subject areas
- General Chemistry
- Condensed Matter Physics
- Materials Chemistry