We investigate a changing effective elastic modulus of a composite with low concentration of nanoparticles resulting from the formation of transition layers around particles. We develop a model of the transition layers as new phase domains which appear and grow around the particles that increase the effective size of the particles consisting of kernels (the initial nanoparticles) enclosed by a transition layerof a new phase. We study formation of a new phase around an isolated inclusion. Then, based on the effective field (selfconsistent) approach we describe new phase formation around spatially distributed particles. The dependence of the microstructure on the mechanical action is studied, and effective elastic properties of the composite are determined.
|
