Publications in Scientific Journals:

B. Sonderegger, E. Kozeschnik:
"Generalized nearest-neighbor broken-bond analysis of randomly oriented interfaces in multi-component fcc and bcc structures";
Metallurgical and Materials Transactions A - Physical Metallurgy and Materials Science, 40 (2009), 3; 499 - 510.

English abstract:
In this article, a model for the estimation of matrix/precipitate interfacial energies is developed. The classic nearest-neighbor broken-bond (NNBB) model is taken as a basis and further developed, to (1) take into account atomic bindings over an arbitrary number of neighboring shells and (2) account for general, multicomponent solid solutions. The model is sufficiently simple and yet reliable for providing estimates of interfacial energies in applications in complex, time-consuming computer simulations of a microstructure/precipitate evolution in which more sophisticated approaches cannot be used. As an example, the model is applied to randomly oriented interfaces in fcc and bcc crystal structures. It is shown that both kinds of crystal interfaces, fcc and bcc, exhibit roughly the same mean interfacial energies, as long as a sufficient number of nearest-neighbor shells is taken into account. A comparison with published experimental and theoretical data on interfacial energies shows good agreement.

"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)

Created from the Publication Database of the Vienna University of Technology.