Ceramic Bismuth Sodium Samarium Titanate - Barium Titanate at the concentration of samarium 0.04 mol% was preparing by ball mill technique. This research has increased the temperature in the combustion process at different temperatures from 940960 and 970 degrees Celsius for 7 hours. The results showed that firing at different temperatures made the ceramic beads very dense. In addition the study of the crystal structure by XRD technique to study the structure of the ceramic BSNT-BT found that the structure is the same substances in the ceramic group BaTiO3. The results of the study of dielectric properties and ferroelectric properties It was found that the dielectric and P-E hysteresis loops were related and tend to correlate with increasing density with sintering temperature. The mechanical properties of ceramics were tested by measuring the hardness of ceramics at different temperatures with temperatures affecting the changes in various properties of ceramics BSNT-BT.

This research study investigated the structure and electrical effect of the La3+ and Sm3+ co-modified BaTiO3 ceramics with formula Ba1-(x-y)(LaxSmyTi)O3. The concentration of of x was fixed at 0.010 while that of y varied from 0.010 to 0.040. The ceramics are prepared by a solid-state mixed-oxide technique. The phase formation behavior is studied using x-ray diffraction (XRD) The dielectric properties with temperature are broad as wide temperature rang. Results showed that co-modified BaTiO3 ceramic ratio of 0.010 to 0.020 still tetragonal structure where the A-site is disturbed by a group of rare-earth doped. In addition we also found that the dielectric constant increases with ratio of 0.010 to 0.020 and respond to higher frequencies that can be used in the applications circuit with high frequency.