ABSTRACT
The elastic and bulk properties of heterogeneous polymer/ceramic composites closely depend on the loading of ceramic filler. Several theoretical and semi-empirical equation models have been established to predict the complex permittivity, elastic modulus, mechanical strength, electrical and thermal conductivities, and coefficient of thermal expansion (CTE) of polymer/ceramic composite materials. These include the role of mixture laws and the effective medium theories, Nielson models in reproducing the experimental data of these composite materials. But, some of these models fail to reproduce the experimental data at higher filler contents, due to the complicated morphological factors such as particle size, their distribution, and mostly the interphase region between the constituents which are not taken into account. In this chapter, we present the most applied equation models for predicting the various properties of polymer/ceramic composites, and we have discussed their applicability for several types of composites reported in the wide literature.
