EFFECTIVE-MEDIUM THEORY FOR TWO-PHASE RANDOM COMPOSITE/SYSTEM

1990 ◽  
Vol 39 (3) ◽  
pp. 457
Author(s):  
MA YU-QIANG ◽  
LI ZHEN-YA
Keyword(s):  
Composite System ◽  
Effective Medium Theory ◽  
Effective Medium ◽  
Two Phase ◽  
Medium Theory ◽  
Random Composite

Effective medium theory based modeling of the thermoelectric properties of composites: comparison between predictions and experiments in the glass–crystal composite system Si10As15Te75–Bi0.4Sb1.6Te3

2015 ◽  
Vol 3 (42) ◽  
pp. 11090-11098 ◽  
Author(s):  
J.-B. Vaney ◽  
A. Piarristeguy ◽  
V. Ohorodniichuck ◽  
O. Ferry ◽  
A. Pradel ◽  
...  
Keyword(s):  
Thermoelectric Properties ◽  
Composite System ◽  
Effective Medium Theory ◽  
Effective Medium ◽  
Medium Theory ◽  
Glass Crystal ◽  
Crystal Composite ◽  
Properties Of Composites ◽  
Modeling Study

An experimental and modeling study of glass–crystal Si10As15Te75–Bi0.4Sb1.6Te3 composites.

scholarly journals Effective Medium Theory for the Elastic Properties of Composite Materials with Various Percolation Thresholds

Materials ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1243 ◽  
Author(s):  
Andrei A. Snarskii ◽  
Mikhail Shamonin ◽  
Pavel Yuskevich
Keyword(s):  
Composite Materials ◽  
Elastic Properties ◽  
Effective Conductivity ◽  
Effective Medium Theory ◽  
Effective Medium ◽  
Effective Parameters ◽  
Two Phase ◽  
Medium Theory ◽  
Percolation Thresholds ◽  
Conductive Properties

It is discussed that the classical effective medium theory for the elastic properties of random heterogeneous materials is not congruous with the effective medium theory for the electrical conductivity. In particular, when describing the elastic and electro-conductive properties of a strongly inhomogeneous two-phase composite material, the steep rise of effective parameters occurs at different concentrations. To achieve the logical concordance between the cross-property relations, a modification of the effective medium theory of the elastic properties is introduced. It is shown that the qualitative conclusions of the theory do not change, while a possibility of describing a broader class of composite materials with various percolation thresholds arises. It is determined under what conditions there is an elasticity theory analogue of the Dykhne formula for the effective conductivity. The theoretical results are supported by known experiments and show improvement over the existing approach. The introduction of the theory with the variable percolation threshold paves the way for describing the magnetorheological properties of magnetoactive elastomers. A similar approach has been recently used for the description of magneto-dielectric and magnetic properties.

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