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Particle reinforced composites are the microstructures of metal and ceramics composites, in which particles of one phase are deliberately strewn in one other. Reinforcement can be of the square, triangular and round shapes, wherein their side dimensions are more or less equal [22]. The dispersion size in these composites is in microns range while the volume concentration is more than 28%. The reinforcements in the particulate composites reinforce the matrix alloy by imposing a check on the motion of dislocations. The 3-D reinforcement in composites owns isotropic properties devised owing to the three systematical orthogonal planes including diameter of the particles, the inter-particle spacing, and the volume fraction of the reinforcement.