The structural properties of BaTiO/sub 3/+xNb/sub 2/O/sub 5/ ceramics

The BaTiO/sub 3/+xNb/sub 2/O/sub 5/ [x=6, 8, 10 wt%] ceramics were prepared by conventional mixed oxide method. The structural properties of the BaTiO/sub 3/+xNb/sub 2/O5 ceramics with the sintering temperature and addition of Nb/sub 2/O/sub 5/ were investigated by XRD and SEM. Increasing the sintering temperature, the 2/spl otimes/ value of BT [110] peak was shifted to the lower degree and intensity of the BN [310] peak was increased. Increasing the addition of Nb/sub 2/O/sub 5/, the intensity of BN [100] peak was decreased and BN [310], [110] peaks were increased. The grain size of the BaTiO/sub 3/+Nb/sub 2/O/sub 5/ ceramics sintered at 1500/spl deg/C were almost uniform. In the BaTiO/sub 3/+10wt%Nb/sub 2/O/sub 5/ ceramics sintered at 1450/spl deg/C, the density was 31.97 [g/cm/sup 3/].