Synthesis & Characterization of Sm2/3Cu3Ti4O12 Ceramics by Microwave Processing Route

Sm2/3Cu3Ti4O12 (SmCTO) was prepared using microwave synthesis route. Calcinations were done at 1000oC for 15 and 30 min, respectively. Sintering was done by microwave method at 1050 oC for 20, 40, and 60 min respectively. XRD analysis, density measurement, micrographical analysis through scanning electron microscopy, dielectric constant and dielectric loss measurement with temperature at different frequencies were done. Highest density was achieved in the sample sintered at 1050 oC for 20 min. From the XRD studies, single perovskite phase with cubic structure was confirmed. Among all the SmCTO ceramics, the sample sintered for 60 min showed better dielectric constant values and hence useful for capacitor applications