Synthesis of Bi4-xYbxTi3O12 Nanopowders by a Modified Sol-Gel Process
Rare earth Yb-doped bismuth titanate Bi4-xYbxTi3O12 (BYT) nanocrystalline powders were obtained by a modified sol-gel method. TG-DTA, FI-IR and XRD were used to determine the lowest heat treatment temperature. Phase changes in the formation of BYT crystalline powders were discussed by XRD. The effect of Yb3+ cation substitution for Bi3+ cation on the microstructure of BYT was also developed with XRD. The grain size of BYT nanopowders is about 40 nm determined by TEM.
Wei Pan and Jianghong Gong
X. Q. Chen et al., "Synthesis of Bi4-xYbxTi3O12 Nanopowders by a Modified Sol-Gel Process", Key Engineering Materials, Vols. 336-338, pp. 2002-2004, 2007