THE EFFECTS OF ELECTRONIC STRUCTURE AND INTERATOMIC BONDING ON THE SOFT X-RAY EMISSION SPECTRA FROM ALUMINUM BINARY SYSTEMS
Abstract
Aluminum, magnesium and some transition metal soft X-ray emission bands from a series of aluminum binary alloys and other aluminum binary compounds were investigated using 6KV electron excitation and a flat crystal vacuum spectrometer. The overall shape of the valence electron emission band and its energy position as a function of alloy composition was determined. It appears from the data that the aluminum K band undergoes changes in shape and energy position which are dependent on the electronic configuration of the element with which the aluminum is chemically bonded. In the Al-Mg system the Al K band is not significantly changed for any composition. On the other hand, the group 1B metals (Cu, Ag and Au) cause the Al K band to split into two components. If the same atomic ratio of aluminum and another element is formed for each of the elements in a given period of the periodic table, it is found that the aluminum K band becomes lower in energy and somewhat more symmetrical in shape as we go from lower to higher atomic number in that period. Elements of the same sub-group appear to have virtually the same effect on the aluminum band but each different sub-group apparently has a different effect. The overall trend seems to indicate that the more electronegative the second component is, the greater effect it has on the aluminum spectrum.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1966
- Accession Number
- AD0807479
Entities
People
- David W. Fischer
- William L. Baun
Organizations
- Air Force Research Laboratory