There is a continually driving desire to enhance the performance of commercial and military aircrafts in aerospace industries. For the development of improved high -performance structural materials, Hot Isostatic Pressing (HIP), (the simultaneous application of heat and high-pressure) has become a standard production process in many industries. Metal matrix composite can have properties that differ from those of conventional metals and alloys. However, in order to obtain such properties a precise control of the composite processing techniques is required. Different aluminum metal matrix composite architectures are almost exclusively produced by hot lsostatic pressing techniques. A comparison with the conventional monolithic matrix that produced by the same technique is obtained using scanning electron microscope imaging and mechanical testing considering the effect of fiber diameter and volume fraction. Based on the mechanical testing and a microscopic examination, the optimum processing parameters and techniques were obtained.