An Ultrasonic Study of Impurity-Interstitial Complexes in Electron Irradiated Aluminum-Silicon and Aluminum-Silver

128 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1987.Ultrasonic attenuation and velocity measurements were performed to probe the structure and annealing behavior of solute self interstitial complexes in electron irradiated (T -monoclinic defect symmetry is present. The annealing, during Stage II, of this defect species follows a first order rate equation which has a prefactor proportional to the solute concentration. The diaelastic effect associated with this defect is found to be comparable in magnitude and anisotropy to that attributed to -self interstitial dumbbells in pure aluminum. A -monoclinic mixed dumbbell model is examined as a possible explanation for these results.U of I OnlyRestricted to the U of I community idenfinitely during batch ingest of legacy ETD