QUENCHING AND ANNEALING OF ZONE REFINED ALUMINUM,
Abstract
During the last several years an appreciable amount of information concerning point defects has been obtained both from equilibrium and nonequilibrium measurements. When metals are quenched from a high temperature to a low temperature most of the imperfections present in thermal equilibrium at the high temperature can be frozen in. In close-packed metals the dominant imperfections are vacancies, vacancy clusters, and dislocations arising from collapsed vacancy clusters. This research is aimed at determining the activation energy for motion of a divacancy and the binding energy of a divacancy as well as investigating the binding energy of larger clusters in aluminum. The activation energy for motion of a divacancy in aluminum was interpreted to be 0.50 = 0.04 eV. The binding energy of a divacancy in aluminum was interpreted to be 0.17 = 0.05 eV. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1963
- Accession Number
- AD0437658
Entities
People
- J. S. Koehler
- M. Doyama
Organizations
- University of Illinois Urbana–Champaign