Fabrication of Textured SrBi2Nb2O9 Ceramics by Templated Grain Growth
Textured SrBi2Nb2O9 (SBN) ceramics were fabricated by templated grain growth (TGG) method. The plated-like SBN particles with shape anisotropy prepared by molten salt method were used as the templates. The SBN powders prepared by conventional solid (CS) reaction were used as matrix powders. It was found that the textured SBN ceramics can be obtained by TGG method. The grain orientation (Lotgering factor, f) increased with the increase of sintering temperature and content of the templates. The textured SBN ceramics with f=0.86 could then be obtained after sintering at 1300 °C for 3 h with 20wt.% templates. The relative density keeps rising with increasing temperature until it reaches a peak value 91.22% at the sintering temperature 1300°C, after which it decreases.
Young Won Chang, Nack J. Kim and Chong Soo Lee
C. W. Cui et al., "Fabrication of Textured SrBi2Nb2O9 Ceramics by Templated Grain Growth", Advanced Materials Research, Vols. 26-28, pp. 239-242, 2007