Spatial Instabilities and Defect Ordering in Solids
Spatial instabilities leading to the formation of defect patterns and microstructures seem to appear generically in solids driven away from thermal equilibrium by physicochemical constraints. Some of these instabilities have been recently studied within the framework of dynamical models for the defect densities. The basic properties of these models which take into account the motion and interaction of defects are reviewed. It is shown on a specific example, namely the ordering of vacancy loops in irradiated materials, how the diffusion and nonlinear interactions may trigger the formation of defect microstructures.
KeywordsPoint Defect Network Dislocation Amplitude Equation Irradiate Material Critical Wavelength
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