Ternary Diffusion.
Abstract
A new viewpoint on the analysis of diffusion behavior in ternary systems is presented, in which the matrix of diffusion coefficients is replaced by the 'relative penetration tendencies' of the three species. This procedure makes the calculation of the diffusion path and Kirkendall shift for a given ternary couple very simple and straightforward: this in turn facilitates the calculation of a complete pattern of composition paths and Kirkendall shifts on the Gibbs triangle for any given model of relative penetration tendencies of the components. The availability of such patterns makes it easy to recognize and model the relative penetration tendencies in systems for which the composition path pattern has been experimentally determined. The approach is then successfully applied to generating relatively simple penetration tendency models which reproduce experimental composition path and Kirkendall shift patterns in Cu-Ni-Zn, Fe-Ni-Co, and Cu-Ag-Au. (Modified author abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1971
- Accession Number
- AD0770076
Entities
People
- Albert G. Guy
- Robert T. Dehoff
Organizations
- University of Florida