Structure of heterogeneous condensed mixtures

An analog method of random arrangement of solid spheres in space (solid dis ks in a plane) is proposed. The method consists of calculating the evolutio n of a system of spheres to an equilibrium state in which they do not inter sect. This method was used to study the statistic structure of metallized,c ompound solid propellants. Parametric investigation of various properties o f solid propellants was performed over a wide range of aluminum particle si zes and component; concentrations. It is shown that sinters whose dimension s depend linearly on the oxidizer particle size can form in combustion of t he propellants. Special feature's leading to the formation of the sinters a re studied. It is shown that at aluminum: concentrations in the propellant higher than a certain critical concentration, combustion can yield a stable residue of sintered aluminum particles which is similar in shape to, the s olid propellant charge.