Mixed Metal Oxides has been focus of research efforts with applications in physics, chemistry, materials science and engineering. The combination of two or more metals in an oxide matrix can produce physics and chemistry unique properties that lead to a high performance in various technologic applications, capable of behaving like isolated unities that may bring it unique properties to the whole system. The interaction of the diverse constituents may greatly increase the performance of nanostructured systems [1]. In the present work, nanostructured mixed metal oxides were synthesized by using fast polymer precursors based method. Metallic cations were dissolved in water and mixed with the water-soluble polymer, and the following product were calcinated and recalcinated at temperatures of 500, 550 and 600 ºC, a 3 ºC/min and 5 ºC/min (for calcination and recalcination, respectively) and a soaking time of 120 minutes and 30 minutes respectively. The calcined powders were analyzed by X-ray diffraction, dilatometry analysis for sintering studies and scanning electron microscopy. After dilatometry, the powders were microwave sintered at different temperatures (from 1000 to 1200 °C) obtaining dense ceramics of about 95% of theoretical density and the samples were electrically characterized.