Effective transport coefficients of anisotropic disordered materials

Complex transport in strongly disordered materials

The Lorentz model constitutes a reference model for transport in disordered materials. Here a tracer meanders through an array of frozen obstacles which in the simplest variant are assumed to be distributed independently. As the density of scatterers increases, the regions of excluded volume start to overlap until eventually long-range transport ceases to exist entirely. This localization trans...

Effective media properties of hyperuniform disordered composite materials

The design challenge of new functional composite materials consisting of multiphase materials has attracted an increasing interest in recent years. In particular, understanding the role of distributions of ordered and disordered particles in a host media is scientifically and technologically important for designing novel materials and devices with superior spectral and angular properties. In th...

The Effective Thermal Transport in Composite Materials

Composite materials are promising materials, which should exhibit an improve on several aspects of the physical properties such as mechanical, thermal, electrical etc.. A composite material is a system of materials composed of two or more components randomly mixed and bonded on a macroscopic scale. For example, metal-alloys Silicon carbides such as Aluminum Silicon Carbide (AlSiC) is made up of...

Photon transport in cylindrically-shaped disordered meso-macroporous materials.

We theoretically and experimentally investigate light diffusion in disordered meso-macroporous materials with a cylindrical shape. High Internal Phase Emulsion (HIPE)-based silica foam samples, exhibiting a polydisperse pore-size distribution centered around 19 μm to resemble certain biological tissues, are realized. To quantify the effect of a finite lateral size on measurable quantities, an a...

A Theoretical Study of Wall Ironing for Anisotropic Workharden Materials