Composites offer tailorable physical, thermal and mechanical properties for a variety of applications. M Cubed manufactures metal-ceramic composites and reaction bonded ceramic composites via pressureless infiltration techniques. Conventional manufacturing of these composites involves use of the resistance heated furnaces and retorts. In this work the ability to produce infiltrated composites using microwave heating has been demonstrated. Identical composite compositions were also fabricated using conventional heating for comparison. Properties of the composites made by microwave assisted (MASS) processes were comparable to the properties of the composites made by the conventional methods. Substantial process time reductions were achieved for all the infiltration processes using microwave assistance. Several prototype components were fabricated to demonstrate process scale up. Thus, MASS processing will lead to lower process time, higher productivity, lower energy consumption and overall lower component cost.