On the effective medium model for particles with a complex structure.
- Resource Type
- Article
- Authors
- Apresyan, L.; Vlasov, D.; Zadorin, D.; Krasovskii, V.
- Source
- Technical Physics. Jan2017, Vol. 62 Issue 1, p6-13. 8p. 3 Diagrams, 1 Graph.
- Subject
- *PARTICLE analysis
*CERAMIC metals
*TOPOLOGY
*ANISOTROPY
*HEURISTIC
- Language
- ISSN
- 1063-7842
We consider a generalization of the effective medium approximation to the case of matrices containing macroscopically inhomogeneous particles with an arbitrary structure (cermet topology). The form of the result is determined to a considerable extent by the heuristic choice of effective cells used to estimate the field and induction values averaged over the volume. The simplest choice of a particle in an unperturbed field as a cell leads to the Maxwell-Garnett approximation, while the self-consistent effective medium approximation corresponds to the replacement of the unperturbed field by the mean field. As an example, we describe particles with a shell, as well as statistically anisotropic media with a single preferred direction. [ABSTRACT FROM AUTHOR]